Decades after the East Area Rapist terrorized the Sacramento area, the most notorious serial criminal case in the region's history is coming to a close. Joseph DeAngelo, 74, told a judge Monday he will plead guilty to 13 murders spanning six counties from the 1970s and '80s. In doing so, he has admitted to being the Golden State Killer. The former police officer also admitted to dozens of sexual assaults that he could not be criminally charged with because too much time has passed. In exchange, DeAngelo will avoid the death penalty. Get the full story in the video above.