EXCLUSIVE: First video 'of NYPD undercover cop at scene of brutal road rage attack' as it's claimed he 'went rogue' and 'forgot what side of the law he was on'

Wojciech Braszczok, 32, faced gang assault, assault and criminal mischief charges in court today



YouTube footage of incident shows biker fitting his description riding very close to the SUV

At one point the biker can be seen going to get off his bike

Claimed to have been just a witness but police have another video that allegedly shows him smashing out back screen of Alexian Lien's Range Rover and 'terrorizing' his wife and young daughter

His lawyer today said showing pictures of his face would jeopardize his life

Alleged to have not told bosses that he was at the incident until three days later

He has been undercover with the Occupy Wall St movement for two years

Online profiles show him interested in fast bikes, women and tweets under a handle using a picture of himself with a mohawk haircut

Unclear how much of his social media is part of his cover

Four bikers have now been taken into custody in connection with the brutal attack on Lien, his wife and two-year-old daughter last week

The first video that appears to show an undercover cop charged for taking part in the brutal gang bike attack on a family in their SUV, can be revealed today.

It comes amid claims that he may have 'gone rogue' after spending too long undercover, according to a report.



Detective Wojciech Braszczok may have become so immersed in his cover story that he forgot himself when he allegedly took part in the assault, suggested a DNAinfo source.



In an echo of films like Donnie Brasco - in which an undercover cop feels the strain of his double life - Braszczok may have stepped over the line.

A source said: 'Sometimes an undercover spends too much time in a role, becomes the character and forgets what side of the law he is on'.

Scroll down for video...



Alongside: A biker matching Braszczok's description can be seen riding next to the rear of the SUV in YouTube videos of the attack

Involvement: Braszczok appears to get off his bike in a YouTube video of the brutal assault

Symbols: Braszczok's jacket bears the insignia of the Front Line Soldiers, a motorcycle club based in New Rochelle, New York, just north of New York City

A YouTube video of the day of the attack shows a rider fitting Braszczok's description in the main group chasing Alexian Lien's Range Rover.

The video shows a man believed to be Braszczok apparently at the front of the group chasing Lien at all times. At no point does he try to stop the pursuit.

At around two minutes he surges from the back and positions himself to the left of the vehicle.

His red bike - which looks like the one in Braszczok's online postings - is later seen right behind the SUV boxing it in.

When Lien stops for the first time the man has moved to its driver's side and as one biker tries to open the driver's door, he goes to get off his bike to assist, but Lien speeds off.

Then he is seen again at the end when Lien is set upon during the second, final confrontation.

The video shows the man believed to be Braszczok apparently pulling up alongside the right of the Range Rover.

His lawyers in court claimed that he never went within 12ft of the vehicle but he is much closer than that as his bike comes to a halt by the rear window.

Braszczok's defence also claimed in court that the window was already broken - but in the video it is still intact when he reaches it.

Footage from the September 29 incident shows Braszczok, who was off duty at the time, getting closer and closer to Alexian Lien's car

Hiding: Braszczok leaves court in New York today with his face hidden after a short hearing into his role in the biker gang assault

Occupy jail: Wojciech Braszczok, 32, was held in custody for his alleged role in the biker gang beating. He has served with NYPD for ten years and was allegedly undercover with Occupy Wall St for five of those

Braszczok is charged with gang assault in the first degree, assault in the first degree and criminal mischief in the third degree.

Wearing beige army combat short and a black hoodie, he did not speak during a five minute hearing at Manhattan's Criminal Court on Wednesday.

The court was told that he took part in a 'brutal and brazen' attack and that while other members of the bike gang hauled Lien out of his car and set upon him, Braszczok continued to 'terrorize' his family.

The criminal complaint states that he punched the rear window of the Range Rover, causing it to break.

He then allegedly kicked the passenger side whilst Lien's wife was sitting in the front passenger seat and his two-year-old daughter was in the back.

The criminal complaint also alleges that at the time of the assault he was wearing a black vest with the words 'Front Line Soldiers' and 'New Rochelle, NY' on it.

His name, 'WOJTEK' was on the front too and he was riding a bright red Yamaha bike.