RATON, N.M. — A suspect has been arrested after allegedly killing a Colorado man at a northern New Mexico rest area, stealing a vehicle at knifepoint and leading state police on a car chase, authorities said Tuesday. Police said 21-year-old Dorien Ray was arrested Monday on suspicion of numerous charges including first-degree murder, armed robbery and possession of a stolen vehicle. Ray allegedly was driving a car reported stolen from Aurora, Colorado, when he stopped around 7 a.m.