Felony homicide arrest made following chaotic Bay Bridge biker crash

SAN FRANCISCO - A dirt bike rider was arrested for felony homicide after a man riding with him was run over on the Bay Bridge while the two allegedly tried to evade officers on Sunday, the California Highway Patrol said.  

The 20-year-old rider's death occurred during a chaotic scene when hundreds of bikes and all-terrain vehicles swarmed the bridge, performing stunts and driving into oncoming traffic. Police said they spotted a dirt bike with two riders behind a concrete median in a construction zone on the bridge around 5:30 p.m. The driver fled and attempted to jump over the barrier, catapulting his passenger into traffic, according to a press release issued Tuesday.

Christopher Lee, of Beaumont, Texas, landed in the roadway on the eastbound side of the Bay Bridge where he was struck and killed by a pick-up truck, police said. 

The other rider, Humza Umer Zashoor, 21, of Stockton was arrested on suspicion of murder, evading, racing and being an accessory in the wrong-way mayhem that led to Lee’s death. 

As many as 500 motorcyclists entered the west side of the Bay Bridge around 3 p.m and began driving recklessly, police said. Many videos online showed motorcycles, dirt bikes and ATVs darting through snarled traffic.

Later that afternoon, a smaller group of dirt bikes were on the bridge, this time headed east toward Oakland. But they spotted CHP officers and turned around, traveling against traffic back toward San Francisco.

CHP said one of the dirt bikers got into a crash on the bridge then may have hopped onto another bike with a man already on it. Officials spotted the second bike at a construction zone near Treasure Island. The two men attempted to get back on the bridge toward Oakland by jumping their bike over a trench and concrete median, police said. It didn't work. 

The San Francisco District Attorney's office will review the case before deciding whether to formally file charges.  

Police are asking the public for help identifying additional people involved. Related information can be submitted to @CHPSanFrancisco on social media or you can call 415-557-1093.