The FBI and the U.S. Marshals Service are searching for an "armed and dangerous" teenager.

Tahj Brewton, 16, is the third suspect in the shooting death of three teenagers in Florida. The other two suspects, ages 17 and 12, were taken into custody Friday. The events, released Friday, date back to last week, when a 16-year-old girl was found injured in Ocklawaha, Florida.. The three attackers are "gang members" who "fled the scene but left a lot of evidence," the sheriff says.