. >> also ahead an unapologetic los angeles police chief responds to critics who say he was late to respond to all the rioting. >> in retrospect. that's exactly what we should have done. we should have blown some heads off. ♪ ♪ ♪ >>> welcome back to a second look. the beating of rodney king and the not guilty conviction of four police officers sparked protests. and the beating of a innocent truck driver is still hard to watch. >> terrible, terrible. and there's no police presence in here. they will not enter the area. he is bleeding unconscious in the street. they're picking his pockets now. >> reporter: more than two weeks after reginald denny was beaten, four men were brought into custody. >> he's the one that took the break when mr. denny was on his ground on his knees and was raising his hands for help. i wanted very much to personally arrest him. >> reporter: chief gates identified all of those arrested as members or associates of the kreups. one of the l.a.'s most notorious street gangs. he said 20-year-old antoine miller pulled miller from his truck when the riots began and later loo