Teenage Son Hammers Parents to Death...Then Has Facebook Party With Bodies Locked in Bedroom

As teens partied til 3:00 a.m. at a Florida home Saturday night, the host's parents laid bludgeoned in their bedroom.  After receiving an anonymous tip, Police discovered Blake and Mary-Joe Hadley dead the next morning. Investigators believe the 40 to 60 guests had no idea of the violence that had taken place before their arrival. NBC WPTV:

Police believe the couple's 17-year-old son, Tyler, killed his parents with a 22-inch hammer, and then left them locked in their bedroom wrapped in household items. ABC 2:

"'The crime scene was, certainly, a merciless killing,' said Port St. Lucie Police Captain Don Kryak"

"When police arrived around 4:20 a.m. Sunday for a 'welfare check,' following a tip that a crime had been committed, they say Tyler Hadley appeared nervous and skittish.

Hadley is in custody and being held without bond. He's being charged as an adult.

Police say Hadley sent out invitations to the party on Facebook, before killing his parents."

Mrs Hadley, 47, is believed to have been killed first and then Mr Hadley, 54, afterwards. Police have not identified a motive.