Who was involved in the deadly Waco biker brawl? “In 34 years of law enforcement, this is the most violent crime scene I have ever been involved in,” Waco Police Sgt. W. Patrick Swanton said following a biker gang shootout that left 9 dead and 18 others wounded in the parking lot of a busy shopping center Sunday. “There is blood everywhere.” Reports of the grisly brawl, which police said escalated from the bathroom to the bar and out into the parking lot of a restaurant called Twin Peaks, sound like a scene from a movie — or one of...