Then the shooting started. A SWAT officer said he saw a biker fire first. But evidence isn't clear who started the deadliest biker shootout in US history that left nine bikers dead and 20 wounded. Police bullets struck four bikers, killing at least two of them. Police arrested 177 bikers and state authorities indicted 154. Jury selection began this week in the first of those trials, against Bandidos Dallas chapter president Christopher "Jake" Carrizal for leading and engaging in organized criminal activity.