Joseph James DeAngelo Jr., a former police officer, faces 13 rape-related charges and 13 murder counts stemming from crimes in the 1970s and 1980s across six counties in California. He is expected to enter a guilty plea during a hearing Monday. Authorities allege the 74-year-old is the elusive Golden State Killer, also known during the crime sprees by nicknames including the East Area Rapist and Visalia Ransacker.