[There was a video here]

Footage of the brutal 2013 beating of a SUV driver by a group of bikers who chased the car down the West Side Highway was used as evidence in court this week against two of the bikers standing trial, including an undercover cop.

The video was taken from the helmet camera of one of the bikers.

Alexian Lien and his wife Rosalyn Ng were on the West Side Highway on Sept. 29, 2013 when a group of bikers, in town for a scofflaw tour called Hollywood Block Party, swarmed around the couple’s SUV. Annoyed, Ng threw a half-eaten plum and a half-empty water bottle at the bikers, who retaliated by smashing a side-view mirror. Tensions and shouting between the couple and the bikers escalated.

“They were saying, ‘I’m gonna get you. I’m gonna fucking kill you!’” Ng said in State Supreme Court in Manhattan Tuesday. “Like, ‘You’re gonna get it!’”

After some bikers drove in front of the couple’s Range Rover, forcing the vehicle to stop on the highway, bikers surrounded their car. “And as they’re around my car, I feel it being hit, being kicked,” Lien testified in court Monday. “I’m horrified at this point, and I recall asking my wife, ‘What do I do? What do I do?’ She says, ‘Just go! Just go!”

Lien sped up SUV, driving over some bikers. One biker, Edwin Mieses, was left paralyzed after his spine was broken. Infuriated, a group of bikers chased the SUV down the West Side Highway, eventually forcing the vehicle to stop in Washington Heights, near 178th Street.

With the car pulled over, bikers pummeled at the SUV’s doors, dragging Lien from his car and into the street, where they beat him.“They were punching him real hard,” NG said in court, in tears. “I’m screaming: ‘We have a baby! We have a baby!’”

The group apparently tried to pull Ng from the vehicle as well. From the New York Times:

Two other motorcyclists battered the passenger window, wrenched the door open and tried to pull Ms. Ng out of the car, she said. She kicked and fought, and the men gave up when they could not undo her seatbelt. When they left, she climbed in the back seat to shelter her daughter. “She had glass all over her, and I’m trying to wipe the glass off of her,” she said.

Eleven bikers were indicted in 2013 for the attack; nine have pleaded guilty to second-degree assault. The two remaining indicted bikers—Robert Sims, 36, and then-undercover detective Wojciech Braszczok, 34—are currently standing trial on first-degree assault charges, and where a judge will decide if they serve a minimum sentence of five years in prison.

Braszczok’s attorney, John Arlia, argued in court this week that the detective was, the Associated Press writes, “afraid of blowing his deep cover” and did not intervene or become involved in the beating. But iPad video taken from the scene, the Times reports, shows Braszczok “breaking a rear window of the car and kicking its passenger side” as other bikers dragged Lien into the street.

Lien was never charged for the altercation.

Video via NY Daily News. Contact the author at aleksander@gawker.com .