Port St. Lucie - A 17-year-old Florida boy is accused of beating his parents to death with a hammer and then throwing a party.

Tyler Hadley of Port St. Lucie is being held on two counts of first-degree murder in the deaths of his parents, Blake and Mary-Jo Hadley. The bodies were discovered early Sunday morning after police received a tip.

Police believe the parents were already dead when the teen used Facebook to invite friends to his house for a party Saturday night.

Hadley is being held in juvenile detention. It's not yet known if he has an attorney.