(NewsNation) — Travis Decker was pronounced dead five months ago, but authorities are now shedding new details on how the ex-Army Ranger’s remains were found after a monthslong manhunt.

Washington State Patrol Captain Trisena Sharff acknowledged an operational psychologist was brought in to review evidence and develop a behavioral profile for Decker. The psychologist’s profile accurately predicted Decker fled directly to the location where his remains were discovered near Grindstone Mountain.

Sharff noted Decker placed himself in an area that was unsafe for searchers to access from below. She added his remains were found through a top-down search strategy.

Decker had been accused of killing his three daughters — Paityn, 9; Evelyn, 8; and Olivia Decker, 5 — after their bodies were found in June. He picked the girls up for a court-mandated parental visit May 30, according to police.

The 32-year-old was reported missing after authorities said he never returned the girls to their mother, Whitney, his ex-wife, after the visit. The search included the U.S. Marshals Special Operations Group, along with the U.S. Border Patrol’s Tactical Unit as well as local sheriff’s deputies.

During the manhunt, police said Decker was being sought on three counts of first-degree murder and first-degree kidnapping. The U.S. Marshals Service declared Decker dead on Sept. 24. An autopsy of his remains couldn’t be completed due to the condition of the remains.

Investigators said they have answers to the motive behind Decker’s actions. They added the details will be shared with the family before any public release.