Prosecutors say an off-duty police detective was among the bikers who pursued and beat Alexian Lien after a confrontation on the West Side Highway.
Lawmakers have been inspired to take action in the wake of the infamous viral video showing a confrontation between a group of bikers and a man driving a sport-utility vehicle.
Five of the bikers who were allegedly involved in a September 29, road rage incident appeared in court on Wednesday.
A police detective who was charged in the biker road rage attack last month has decided not to testify before a grand jury, his attorney said.
Another biker has been arrested in the road rage attack that left a sport-utility vehicle driver injured.
Motorcyclists have been venting all over the Web about high-profile cases they said are giving them a bad name.