Police in Washington will scale back their search for Travis Decker, a Pewaukee native suspected of killing his three daughters.

Decker has been the subject of a manhunt since June 2 when his three daughters were found murdered near his abandoned pickup truck in Washington state

Despite a "decrease in leads and tips" on where Decker may be, the sheriff's office said detectives remain "actively engaged in processing evidence and will continue to follow up" on any new information they receive on the father's possible whereabouts -- including the sighting in Idaho earlier this month, which turned out not to be Decker.

The Chelan County Sheriff's Office in Washington state says it is scaling back its search for Travis Decker, the man accused of killing his three daughters nearly two months ago. Paityn, 9; Evelyn, 8;