Brandy McCaslin, who killed her three children before turning the gun on herself during a supervised visit last week, had tried to commit suicide in January, the youngest victim's father said.
An hours-long stand-off with Oklahoma police ended in tragedy after a mother and her three children were found dead in what is believed to be a murder-suicide.
2 dead, 1 wounded in apparent murder-suicide in Verdigris krmg.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from krmg.com Daily Mail and Mail on Sunday newspapers.