As the search for Travis Decker -- the dad accused of killing his three daughters -- has almost reached the three-month mark, officials are revealing disturbing new details about the crime scene and the evidence that they say indicates he is the sole suspect.

The Washington State Crime Lab completed an analysis showing DNA profiles found at the crime scene matched Travis Decker's.

“The completion of this DNA analysis provides additional evidence that indicates Travis Decker is the only suspect involved in committing these homicides,” the sheriff’s office said in a release. Decker's location is still unknown, and investigators have not confirmed whether he is alive or dead.