In the course of a month, Ray Rochell has gone from living with a roof over his head to sleeping on a dirty mattress tucked under a trailer near a tire shop on Dorsey and Davis streets in Gainesville. The two-bedroom house on Bank Street where Rochell was splitting $550 rent with a buddy was recently demolished by the city of Gainesville after the property was deemed unsafe by Code Enforcement officials. Jose Casellas and other nearby workers who have seen the 56-year-old Rochell sleeping under the trailer have warned the man they have seen large snakes near the woods where he keeps his mattress.