The girlfriend of actor Robert Pastorelli, who played the comical house-painter Eldon on TV’s “Murphy Brown,” died Monday night at his Los Angeles home of a gunshot wound to the head. Charemon Jonovich, 25, “apparently took her life, and it is being investigated as a possible suicide,” said a spokesman for the L.A. coroner’s office. Police say Pastorelli was home at the time of the death and cooperated with detectives.