Witness Who Watched Biker Gang Attack Victim: 'I Felt Helpless'

According to a police dispatcher, about 20 motorcyclists were involved and yelling at motorists as they slowed traffic on March 9.

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Police in San Francisco are trying to figure what may have led to a horrific episode of road rage in which an Uber driver was swarmed by more than a dozen bikers, and when he got out of his car, was beaten. One motorist tried to get past and that is when the bikers went after him. Then, the driver got boxed in and was surrounded. The beat down was caught on tape.

Witness Who Watched Biker Gang Attack Victim: I Felt Helpless

According to a police dispatcher, about 20 motorcyclists were involved and yelling at motorists as they slowed traffic on March 9. Police in San Francisco are trying to figure what may have led to a horrific episode of road rage in which an Uber driver was swarmed by more than a dozen bikers, and when he got out of his car, was beaten.