NEED TO KNOW

Whitney Decker's attorney, Arianna Cozart, tells PEOPLE that she believes Travis Decker has died by suicide

Authorities are searching for Travis, who is accused by police of killing his three daughters, Paityn Decker, 9, Evelyn Decker, 8, and Olivia Decker, 5

Cozart says Travis struggled with mental health issues but was a "present and active father up until the end"

The attorney representing the mother of the three girls who police allege were killed by their father believes he is no longer alive as the manhunt for him goes into its fourth day.

Travis Decker, 32, was accused by police of killing Paityn Decker, 9, Evelyn Decker, 8, and Olivia Decker, 5, after they were found dead near the Rock Island Campground in Chelan County, Wash. on June 2, PEOPLE previously reporte

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