Redmond Fire and the Deschutes County Sheriff's Office are investigating the cause of a fire in an RV that appears to have claimed the life of a person whose body was discovered inside just after midnight. Firefighters say the 30 foot trailer was being used as a residence and was fully engulfed in flames when they got to it at 686 Northeast Wilcox Avenue in Terrebonne. Firefighters were able to get a handle on the blaze before it spread to any nearby buildings.