FORT LAUDERDALE, Fla. (AP) A jury on Monday convicted a teenager of attempted murder in a vicious kicking and stomping attack on a girl outside a middle school in 2010, rejecting his claims of insanity.

The jury deliberated just over four hours before returning the guilty verdict in the trial of Wayne Treacy in the attack on then-15-year-old Josie Lou Ratley. Treacy, 17, could get up to 50 years in prison for the conviction of attempted first-degree murder with a deadly weapon — the steel-toed boots he used to nearly crush the girl’s skull.