There is new information about the accused killer in an alleged incestuous triple-murder suicide that spanned three states.
The ex-wife of suspected gunman Steven Pladl claims he had a history of abusive behavior. She says he had an explosive temper and legally owned at least four firearms.
Police say Pladl killed his 20-year-old biological daughter and the seven-month old son they had together.
Officers say Pladl also killed his daughter's adoptive father and then killed himself.
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Ex-wife: Suspected killer in incestuous triple murder-suicide had 'explosive' temper
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