A new surveillance video involving the death of Christopher Skinner suggests his assailants may have attacked him because his hand struck their SUV moments before a fight began that ended with his death.

Skinner, 27, was beaten by two to four men at Victoria and Adelaide Sts. shortly after 3 a.m. Sunday and left lying on the pavement in front of a black SUV, witnesses said.

According to those accounts, the vehicle's driver then deliberately drove over Skinner with both the front and rear wheels.

Homicide detective Stacy Gallant presented three new video clips today that show Skinner attempting to hail a cab at two different locations on Adelaide St. that morning.

The first clip is at 2:36 a.m. in the entertainment district where Skinner tries to catch a cab for four minutes before walking east on Adelaide.

The second clip, which is 15 minutes later, shows Skinner looking at what police believe is his cellphone or iPod west of Bay, also on Adelaide.

Before viewing the third clip, which is three to four car lengths away from where Skinner was killed, Gallant explained the fuzzy video seems to show the victim attempting to hail cab again while standing on Adelaide.

A few cars pass before the suspect vehicle come along, which is when Gallant suggests Skinner's hand may have "intentionally or unintentionally" hit it.

Moments later, Skinner walked towards Victoria where the suspect SUV stopped.

This clip also shows traffic stops after Skinner leaves the frame, leading police to believe that a number of people witnessed the attack.

Gallant is calling on these witnesses to contact police.

So far, the only description of the suspects is of the driver. Police say he was under 30, with light skin and short military-style hair. He was wearing an undershirt.

Friends and family of Skinner mourned his death on Thursday at a memorial service near the town of Uxbridge.