The video, shared by outlet The News Movement, shows Mr Pretti, 37, at the corner of East 36th and Park Avenue on 13 January, where federal agents were blocking a street.

It was just four days after an ICE agent shot and killed 37-year-old Renee Good in her vehicle in nearby Portland Avenue South, and 11 before Mr Pretti was shot dead by immigration enforcement agents last Saturday.

Mr Pretti's family have confirmed it is him in the new footage.

Sky News has not been able to verify what happened in the build-up to the incident.

What does the video show?

As the agents start driving away from the crowd of observers, Mr Pretti appears to spit at the vehicle.

He then is seen kicking the vehicle's taillight, before kicking it again and knocking it loose.

An agent then got out of the vehicle, grabs him and pushes him to the ground.

During the altercation, agents fire tear gas and pepper balls into the crowd.

They continue to hold the man down before he breaks free.

A gun can be seen holstered behind his back as he shouts at the officials, who are retreating.

What's been said about the footage?

A representative for the Pretti family confirmed to Sky's US partner network NBC News that the man in the video is Mr Pretti.

Steve Schleicher, the attorney for the Pretti family, said in a statement: "A week before Alex was gunned down in the street - despite posing no threat to anyone - he was violently assaulted by a group of ICE agents.

"Nothing that happened a full week before could possibly have justified Alex's killing at the hands of ICE on Jan 24."

A Homeland Security spokesperson added to NBC News that its investigations team is reviewing the video.

Later, Donald Trump shared the full video of the 13 January incident on Truth Social, and then reposted an X user saying "such a peaceful protester" of Mr Pretti.

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Mr Pretti, an ICU nurse who had been protesting the presence of ICE agents in the city following the death of Ms Good, was shot 10 times by two federal officers on 24 January.

Since then, top White House officials, notably Trump adviser Stephen Miller and homeland security secretary Kristi Noem, have described Mr Pretti as a "would-be assassin" as he had a gun on him at the time of his death.

Under the Second Amendment of the US Constitution, the rights of citizens to carry a gun are protected. Local officials in Minnesota have also said Mr Pretti was carrying a handgun legally at the time.

Mr Trump had appeared to distance himself from those remarks, telling reporters before a rally in Iowa: "No [I wouldn't call Mr Pretti a would-be assassin]. Not as a - no... Listen, you can't walk in with guns.

"You can't do that, but it's just a very unfortunate incident."

The agents involved in his death have been placed on leave after Mr Trump said he wanted to "de-escalate" the situation.

"It is a massive change in your life where you can suddenly no longer move any of your limbs," said Sebastian Gomez-Pena, a volunteer in the first UK trial of the device developed by Mr Musk's company Neuralink.

"This kind of technology kind of gives you a new piece of hope."

Seb had just completed his first term at medical school when an accident left him paralysed from the neck down.

He's one of seven people fitted with the chip in the UK trial, designed to assess the safety and reliability of the device.

The Neuralink chip, which is linked to 1,024 electrodes implanted in his brain, was fitted in a five-hour operation at University College London Hospital (UCLH).

While British surgeons and engineers from Neuralink were involved, the device itself was implanted by Neuralink's R1 robot - developed to insert the microscopic electrodes into fragile brain tissue.

The electrodes were inserted about 4mm into the surface of Seb's brain, in the region that controls hand movements.

Nerve signals are carried via threads around 10-times thinner than a human hair to the chip, which is fitted into a circular hole in Seb's skull.

Data from the chip is transferred wirelessly to a computer in which AI software "learns" to interpret the signals, translating Seb's instructions to his hands that were cut off following his accident into the movement of a cursor on his laptop or phone.

"Everyone in my position tries to move some bit of their body to see if there is any form of recovery, but now when I think about moving my hand it's cool to see that… something actually happens," he said.

"You just think it and it does it."

I watch as Seb's cursor flies around the laptop screen, turning the pages of a research paper he's studying for his medical school exams.

He highlights text, opens and closes windows as fast or faster than someone using a mouse or touchpad.

'Mindblowing' control

We meet Seb on the day his doctors are seeing him for the first time since he's learned to use the device.

They're brain surgeons, but seem as impressed as I am.

"It's mindblowing - you can see the level of control that he has," said Mr Harith Akram, a neurosurgeon at UCLH and lead investigator of the UK trial.

It is still early days. It's taken Neuralink nearly 20 years to develop the chip and electrode technology, surgical robot and AI tools needed to satisfy regulators it's in a position to test a device in humans.

The first device was implanted in a US volunteer two years ago; now 21 people in the US, Canada, UK and the UAE have one.

All have severe paralysis - either due to spinal injury, stroke, or neurodegenerative conditions such as ALS.

Results from the trials have yet to be published in peer-reviewed scientific journals or submitted to regulators. Neuralink agreed to give us access to the trial but declined to be interviewed.

However, in Mr Akram's opinion, the early results are promising.

"This technology is going to be a game-changer for patients with severe neurological disability," he said.

"Those patients have very little really to improve their independence. Especially now that we live in a world where we are so dependent on technology."

Neuralink says its mission is to "restore autonomy to those with unmet medical needs and unlock new dimensions of human potential".

Already some users have mastered the technology enough to type on a virtual keyboard by "thinking" about pressing keys with their fingers. Others have used the device to feed themselves with a robotic arm.

Alongside this trial targeting areas of the brain controlling movement, another is targeting brain regions involved in speech in the hope it can be restored in people who've lost the ability to talk following stroke or other brain injury.

Users could 'inhabit' a robot - Musk

The company also has plans to investigate reversing blindness by sending data from a cameras, via the chip, into the brain's vision-processing centres.

Accessing other brain areas involves implanting electrodes deeper into the brain safely and reliably, a challenge the company admits it has yet to overcome.

Yet Elon Musk, Neuralink's controversial founder, has greater hopes for the technology.

At an event last year, he floated the idea of users connecting their device to an Optimus robot made by his other company, Tesla.

"You should actually be able to have full body control and sensors from an Optimus robot. So you could basically inhabit an Optimus robot. It's not just the hand. It's the whole thing," said Mr Musk.

"It'd be kind of cool. The future is going to be weird. But kind of cool."

There's no doubting the potential of this kind of technology for people with severe paralysis or "locked-in" syndrome, or perhaps one day, even blindness.

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But it also raises important questions about future users' safety and privacy.

Those remain a way off however.

Neuralink will need to do larger trials to show the devices are safe and reliable longer term before they could be licensed for wide use.

Unlike Elon Musk's other engineering endeavours, this one depends on brave, determined volunteers like Seb to help deliver it.

It suggests proposals to screen visitors' social media accounts and family histories - as announced last month - could cut tourism spending by $15bn (£10.8bn) and impact 157,000 jobs.

US Customs and Border Protection (CBP) has proposed collecting five years' of social media information from travellers from selected countries - including the UK - who are eligible to visit without a visa through the Electronic System for Travel Authorization (ESTA).

The Trump administration has increased monitoring of international travellers and immigrants.

The survey, commissioned by the World Travel & Tourism Council (WTTC), interviewed travellers across several of the roughly three dozen countries participating in the ESTA programme.

The findings were combined with economic modelling assessing potential effects on international arrivals, visitor spending, and the wider tourism-related GDP and employment in the US.

Two-thirds (66%) of more than 4,500 respondents said they were aware of the potential changes, suggesting the impact on people's travel plans could be felt quickly if the new rules are implemented.

Trump defends 'safety' measure

December's announcement stated that CBP would begin requesting additional information, including telephone numbers used by the visitor over the past five years, email addresses used over the past decade, and other details about family members.

Asked at a White House event whether he was concerned the measure might affect US tourism, President Donald Trump disagreed.

"We want safety, we want security, we want to make sure we're not letting the wrong people come into our country," he said.

The announcement did not specify what the administration would be looking for in social media accounts or why more extensive information was required.

Change 'risks 150,000 jobs'

Gloria Guevara, president and CEO of the WTTC, said: "Security at the US border is vital, but the planned policy changes will damage job creation, which the US administration values so much.

"Our research finds that over 150,000 jobs could be lost if this policy goes ahead - about the same number usually created each quarter in the US.

"Even modest shifts in visitor behaviour, discouraged by the planned changes, will have real economic consequences for US travel and tourism, particularly in a highly competitive global market."

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The increased focus on social media screening has angered immigration and free speech advocates, who are concerned about the administration's intentions and whether the measures could target critics of the government.

Ms Guevara added: "WTTC urges US policymakers to carefully assess this policy and its consequences for the economy and jobs.

"Travel and tourism is a critical driver of the American economy, job creation and international connectivity, with one in 10 jobs globally supported by the sector."

According to the US commerce department, international visitor arrivals to the US in March 2025 totalled approximately 5.4 million, around 86.4% of the visitor volume recorded in March 2019, showing that inbound tourism remains significantly below pre-pandemic levels.

Sky News has contacted the US embassy in London for comment.

Waymo, Google's driverless car division, has confirmed its self-driving cars will be fully operational by the end of 2026, assuming regulators give the go-ahead.

The phrase "Q4" was mentioned: corporate code for the last few months of the year.

There are around 24 Waymo vehicles currently roaming the streets of London, although they are driven by humans.

This is the mapping and data collection phase of the project.

The next phase will be testing with a safety driver at the wheel, following the code of practice laid out by the government for autonomous vehicles.

The third and final phase will be when the driverless cars hit the streets and Londoners can be driven to their destination by their car.

"Our intent is to open to riders later this year. That's contingent on government approvals," Waymo spokesperson Ethan Teicher told Sky News.

Waymo is working hard to win the approval of government - and their efforts seem to be succeeding.

'We're not cutting corners'

Minister for local transport Lilian Greenwood MP enthusiastically greeted the news of Waymo's arrival, saying: "We're delighted that you chose London as your first European city."

She said "government must be in the driving seat", adding: "We're committed to putting safety and security first."

But the government is working with Waymo, she said, to develop "world leading" and "groundbreaking" regulation to speed up the arrival of self-driving cars.

"We're definitely not cutting corners, but we are accelerating towards automated vehicles operating on our streets," said Ms Greenwood.

Waymo emphasised the safety record of the cars, saying they were significantly safer than human drivers, especially for pedestrians or cyclists.

It also said there were other benefits, such as privacy in the car, and peace of mind and security for female passengers.

"Our sensors are able to perceive the world around them, much better, much more accurately and with more of a field of view than human drivers can," said Nicole Gavel, head of business development and strategic partnerships at Waymo.

The car, she added, was able to achieve a "superhuman level of perception".

However, many questions about exactly how Waymo will operate remain unresolved.

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For instance: how much of London will Waymo cover? It is currently testing in 19 boroughs, 13 less than the total, and Mr Teicher confirmed it will start in a small area, expanding out from there, although not exactly where that area will be.

Another question: is Waymo ready for London?

It has thus far operated in American cities, where jaywalking is a crime, and on the polite streets of Tokyo.

Will it be able to cope with the behaviour of London's pedestrians? Or of London's passengers?

"We see a lot of jaywalkers in San Francisco," said Mr Teicher.

"Pedestrians in Los Angeles are different, but also something that we have to deal with. Same is true of every city that we operate in, Phoenix, Austin, Atlanta, and Miami. And in the UK, our pedestrian behaviour is tested and proven."

One thing's for sure: don't expect a flood of driverless cars hitting London's streets.

In San Francisco and the Bay Area, Waymo's biggest market, it has around 1,000 vehicles. In Los Angeles, it has 700.

For this reason, Mr Teicher fended off concerns that the introduction of driverless vehicles would lead to a big increase in traffic, saying: "We're going to be a drop in the bucket by comparison with the ride-hailing market".

Although he did add that the tireless Waymos could be much more efficient than humans, so fewer cars could make more trips.

The proof, of course, will be in the pudding - or should we say, the driving. It seems we will find out soon enough whether robots really can tackle London's streets.

Yet their determination to stay in power is matched by their efforts to conceal what has happened.

Trump threatens Tehran - latest updates

Iran's communications blackout - which began on 8 January - has eased somewhat, with sporadic internet access now possible.

But it remains difficult to communicate with people inside the country, who must find both the courage and the practical means to reach out.

The activist doctor

Dr Yaser Rahmani-Rad wants his voice to be heard. A specialist in internal medicine at a public hospital in Tehran, he told Sky News what he saw as the regime launched its crackdown in the capital.

"Pressure was being put on nurses and doctors to clear out the emergency department. In other words, any patient who was there - whether they had clear medical indications or not - was told to be discharged. They wanted the emergency ward emptied for security forces who had been injured."

We know members of the Iranian security forces have made incursions into clinics and hospitals. Images of one such operation inside the Imam Khomeini Hospital in western Iran have been posted online.

Staff members are seen trying to stop them at the front entrance.

Dr Rahmani-Rad relayed details passed to him by colleagues trying to cope with the consequences of the state crackdown.

"In some cases patients were removed from ventilators and other medical equipment. They said: 'Let them die. They have no rights. They are against the Islamic system, and they deserve to die.'"

Medical workers also told the doctor security officials targeted protesters with their weapons inside medical facilities.

"Some had been wounded by shotguns and (later) were killed in the hospital with live ammunition… (protesters) who had been shot with live bullets and were again killed inside the hospital with live ammunition."

As a result of the state crackdown, Dr Rahmani-Rad says the security forces are now effectively in control of the hospitals.

"If they realise that someone who was injured in the protests has gone to a hospital, or even if they had gone before and managed to escape them, they will arrest that person. By checking security cameras, they track them down, raid the locations, and detain them. This is the situation we're in right now."

Targeting doctors

Reports of doctors and medical professionals being targeted have circulated online.

So far, human rights organisations say they have verified six cases of medical professionals being arrested or detained for treating protesters.

Among these are Ameneh Soleimani, Babak Pouramin, and Farhad Nadali, colleagues whose arrests were confirmed by Dr Rahmani-Rad.

One of these doctors is Dr Alireza Golchini, who posted on Instagram earlier in January saying that he would provide treatment to protesters.

In recent days, human rights organisations say security forces raided Dr Golchini's home and beat him before detaining him.

Now, Dr Golchini is reportedly facing the risk of execution, according to human rights organisation Hengaw, for charges of Moharrebeh - known as waging war against god. 

How many people have been killed?

Iranian authorities violently shut down protests and enforced an internet blackout that was largely in place from eight to 27 January.

This has obscured the true impact of the brutal crackdown and made it difficult to collect verified data on the numbers of people killed and injured during the uprising.

Iran's Islamic Republic has said 3,117 people have been killed - claiming the majority of these deaths were security forces and civilians, not protesters.

Human rights agencies warn numbers are much higher.

The Human Rights Activists News Agency (HRANA) has independently verified 6,301 deaths, with a further 17,091 cases under review, bringing the possible total up to over 23,000.

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Medical professionals also claim the authorities' figure is too low.

Dr Rahmani-Rad and his network of doctors previously estimated around 20,000 to 30,000 people have been killed, and now believe it could be higher.

This number is echoed by Dr Amir-Mobarez Parasta, an eye surgeon based in Germany and a supporter of Reza Pahlavi, the son of the former Shah of Iran.

He claims at least 25,654 deaths have been recorded in hospitals and clinics across Iran since the protests began up to 23 January. Nearly a third of these (8,354) were in Tehran alone.

Sky News has approached the Iranian embassy for confirmation of these figures, but received no response.

Dr Parasta says he has collected figures on clinically reported deaths which have been linked to the protests, by speaking to medical professionals in hospitals and clinics across Iran. He says figures were verified by at least two individuals in each medical organisation.

Sky News has not seen these clinical reports and is unable to independently verify the figure.

Seeking care from overseas doctors

Injured protesters who require medical care are faced with a terrible dilemma. By seeking treatment at a clinic or hospital in Iran, they risk arrest and detention by the authorities.

Instead, some are turning to doctors who work overseas.

Dr Panteha Rezaeian is a cardio-vascular expert in California who has received numerous calls from protest participants or members of their families.

"They already had been shot. They couldn't go to any hospital because they are afraid of getting killed or arrested. So what's happened? They are inside the house. They have infections, some of them are still bleeding. Some of (them) have been shot inside the belly."

Dr Rezaeian told us about her most recent call.

"I have one very young boy that has been shot. From just a two-metre distance into both knees. And you can imagine he cannot ever walk again."

It is an extreme form of remote health care and the specialist says she does what she can, but these are people who need urgent care.

"Many of the injured people are not going (to hospital) and then what does mean? So it means they are at the risk of potential death in the next few days or a week."

Sky News approached Iranian officials with our findings and received no response.