Teen, 15, charged with murder in mass slaughter of his parents, 3 young siblings in swanky Seattle suburb New York Post 15-year-old accused of killing his parents and 3 siblings in their Washington state home NBC NewsTeen who allegedly shot 5 family members dead tried to blame brother, documents say Yahoo! VoicesTeen charged with murder of parents, 3 siblings in Fall City KING5.com‘Multiple’ Family Members Killed in Wash. Home, 15-Year-Old Son in Custody: ‘You Thought They Were Perfect’ PEOPLE