India, June 10 -- Amassive manhunt is underway for a father after three young sistersinWashington were found dead. Paityn Decker, 9; Evelyn Decker, 8; and Olivia Decker, 5, were found murdered after being last seen leaving to be with their father, Travis Decker, on a "planned visitation," police said.

Officials are now searching for Decker, 32, who is homeless. He has been living in his vehicle or at various motels or campgrounds in the area, officials said, according to ABC News. He is wanted for three counts offirst-degree murder and one count of first-degree kidnapping. According to cops, Decker is a former member of the military with "extensive training" and may pose a "significant risk."

Authorities have been searching for Decker i...