(Vancouver, WA)  --  A suspect is in custody, following a hit-and-run crash that seriously injured a pedestrian in Vancouver.  Police say the crash took place in the four-thousand block of 131st Street around one o'clock yesterday morning.  Authorities say the suspect, Treven Perry, was arrested after the vehicle involved in the crash was found about a mile away from the crash scene.  Police say the victim is expected to survive.