. >> reporter: saturday evening, frank birgfeld finally arrives in grand b junction. >> we searched the house, we ser searched the property. by about 9:30 they had blood hounds on the grounds trooing to see whether there was a trail leading away from the house. then sunday night, a disturbing development. >> what's your emergency? >> there's a car on fire in the parking lot. >> paige's ford red focus is discovered on fire in a parking lot two miles from her home. >> do you see flames or smoke? >> yeah, there's a lot of flames. but there's nobody around that i could see. >> reporter: by the time firefighters rooi s arrive, the able to salvage little. the car is vandalized. the fire ruled arson. >> we have a lot of work to do and we don't know where paige is at. >> the front seat on the driver's side is pushed all the way back. they asked a woman paige's height to try to reach the pedals. she can't. plus there's this -- paige's daily planner survives the blaze, almost laminated by the plastic keeping it intact. but someone has ripped out four days of pages. >> they found the dates, 26, 27