killer suspect being charged with first-degree murder of a visalia man. this makes the 13th murder charge against joseph james deangelo. he is the man believed fob responsible for a string of murders and rapes up and down california in the 1970s and '80s. brian johnson from our sister station in fresno has details of the latest charge. >> reporter: investigators at the visalia police department have long believed that whoever burglarized 100 homes in the mid-'70s was also responsible for shooting and killing college of the sequoias journalism professor claude smelling in september of '75. throughout the years they also theorized that this is the same person as the golden state killer. monday chief jason salazar announced joseph deangelo is the sole suspect in the burglaries and snelling murder. deangelo has already been charged with other murders and is in custody in sacramento county. >> we are confident through the information obtained from victims and witnesses through thorough examination of modus operandi in the cases through the development of physical evidence and by linking a fire