California mass killing raises troubling questions over guns and domestic abuse

David Mora, who shot dead his young daughters and then himself, was subject to restraining order that barred him from having guns

The father who fatally shot his three daughters and a man at a California church this week repeatedly threatened to kill his estranged girlfriend and scared their girls so much they cried and one bit off her fingernails, according to a restraining order that was supposed to keep him away from guns and bullets.

But 39-year-old David Mora had both when he showed up Monday for a supervised visit with his daughters, ages 13, 10 and nine. He shot them, the chaperone he and his ex-girlfriend had agreed could oversee the weekly visits, and then himself.