FBI investigates taped LAPD beating

LOS ANGELES, California (CNN) -- The FBI announced it is investigating Los Angeles police after viewing a videotape that shows officers repeatedly beating a suspect in the face while he cries out that he cannot breathe.

William Cardenas, 23, a gang member, was wanted on a felony warrant for receiving stolen property, police said. On August 11, officers Patrick Farrell and Alexander Schlegel recognized him and chased him. Cardenas ran.