A Prunedale man has been charged with murder and elderly abuse after allegedly killing his father. Police officers found the body of 70-year-old Jerry Roberts while performing a welfare check at his residence on Monday.  The victim’s son, 34-year-old Matthew Roberts was arrested in connection with his death. Roberts has a prior conviction for shooting his stepfather in 2005 and has been diagnosed with paranoid schizophrenia. He is scheduled to appear in court this afternoon for arraignment.