Investigators have been looking for Decker since the night of May 30, when he failed to return the girls to their mother’s home.

The girls, Olivia, Evelyn, and Paityn, were found dead near a campground on June 2, three days after they were last seen alive.

Authorities said they recovered “a large amount of evidence” from Travis Decker's vehicle, including blood samples and “many of the suspect’s personal items."

Travis Decker remained missing despite a multi-jurisdictional manhunt in effect for the 32-year old father and U.S. Army veteran.

Investigators have been looking for Decker since the night of May 30, when he failed to return the girls to their mother’s home.