BROKEN ARROW, Okla. (AP) -- Police in Oklahoma said they have turned to social media posts for clues about the motive of a teenager accused in the stabbing deaths of his parents and three siblings during a late-night attack that left bodies strewn through the family's home.
A booking document filed by police in the Tulsa suburb of Broken Arrow accused 18-year-old Robert Bever of five counts of first-degree murder and a count of aggravated assault in the attack Wednesday night.
Bever's 16-year-old brother also was being held. Because he’s a juvenile, officers have not released his name or announced charges against him. Broken Arrow Police Cpl. Leon Calhoun said both brothers were cooperating with the investigation.
(Copyright 2015 by The Associated Press. All Rights Reserved.)