Travis Decker is accused of killing his three young daughters, whose bodies were found near a campground in central Washington.

(CNN) - Investigators believe Travis Decker is the only suspect in his daughters’ killings. The Washington state father of three is still on the run nearly three months after his daughters were found dead near a campsite in the Cascades.

Authorities said DNA testing has confirmed that the sole suspect in the killing of three young girls in Washington state over two months ago is their father, who has still not been located.