A 30-year-old man accused of murder for selling the fentanyl that caused a fatal overdose remains behind bars in lieu of $1 million bail.Everardo Rodriguez of Lake Elsinore was arrested Friday, March 4, following a two-month investigation into the death of 26-year-old Gavin Battle, according to the Riverside County Sheriff’s Department.Battle was found dead of fentanyl poisoning in a vehicle on the night of Jan. 5 in the 29000 block of Central Avenue, sheriff’s officials said.Rodriguez was arrested on Limited Avenue and booked into the Southwest Detention Center in Murrieta.