Christine Stewart, 47, of Perris, was found Wednesday at the Best Western hotel on Poway Road.
Officials say there were no obvious signs of trauma to Stewart's body but they believe she was killed somewhere else, and then brought to the hotel.
Investigators were called to the hotel around 2 p.m. but haven’t revealed who discovered the body.
Detectives are now looking for her boyfriend, 27-year-old Joseph Dorsey. He is considered a missing person and a person of interest in Stewart’s death.
Stewart and Dorsey were reported missing Monday according to investigators with the Riverside County Sheriff’s Department. The couple was last seen over the weekend in Lake Elsinore.
Investigators are looking for a 1994, dark blue, Ford Explorer, with a gray primer hood and front fender, California license plate 6UDY773
If you have any information call the Riverside Sheriff's Dept. at 951- 955-2777