Over the past year, Bradley Stone “raised no red flags in 22 court appearances and 17 visits or contacts with probation officers, lied about having guns, and convinced a military psychiatrist that he wasn’t homicidal or suicidal,” according to Montgomery County District Attorney Risa Vetri Ferman.

But on Monday, he “proved it all wrong,” write The Philadelphia Inquirer‘s Chris Palmer and Jessica Parks.

Officials have not yet concluded what motivated Stone’s killing of his ex-wife and five members of her family, but the two had been in a bitter custody battle. Following the attacks, Stone was found dead of a drug overdose not far from his home.

Nicole Stone obtained a temporary restraining order, which lasted ten days in 2010. Her application for a permanent protection-from-abuse order was denied.

Read more at Philly.com.