An aunt and her niece were hiking one of their favorite trails when a psycho viciously murdered them during a random killing spree in Utah this week, their devastated families said.

TORREY, Utah (AP) -- Two men whose wives did not return from a hike in Utah's south-central desert arrived at the trailhead Wednesday to find both women dead and a car missing, spurring a multi-state search that led investigators to a third body before they arrested a suspect Thursday in Colorado.