Teenager found biting off slain man's face at murder scene

A teenager bit off pieces of the face of a slain man at the scene of a double homicide in Florida that may be linked to an addictive synthetic drug.

Police said they found Florida State University student Austin Harrouff, 19, grunting and growling as he removed the victim's flesh with his teeth late on Monday in the driveway of a house in Tequesta, less than 150 kilometers north of Miami.

Harrouff allegedly had knifed the man and his wife to death and wounded their neighbor.