Between then and now, sheriff's detectives conducted surveillance on DeAngelo to determine his habits and how he might react to an arrest, Jones said. He was a former police officer in the city of Auburn. He would tie up the man and pile dishes on his back, then rape the woman while threatening to kill them both if the dishes tumbled.
Other counties in California have already started filing charges of their own against DeAngelo.
Despite an outpouring of thousands of tips over the years, his name had not been on authorities' radar before last week, Sacramento County District Attorney Anne Marie Schubert said.
Jones said he always thought the rapist was alive, but might be in prison.
Janelle Cruz was 18-years-old when she was murdered in 1986 in Irvine.
On Wednesday, DeAngelo was charged with the February 2, 1978, murders of the Maggiores along with the 1980 homicides of Lyman and Charlene Smith, of Ventura.
The Golden State Killer was also known as the East Area Rapist and the Original Night Stalker.
DeAngelo was an officer in two different police departments during the 1970s - Exeter in Tulare County and Auburn near Sacramento.
Brian Maggiore (r.) and his wife, Katie, were on an evening walk with their dog in their Rancho Cordova neighborhood in California when they were chased down and murdered by the serial killer in 1978.
"This defendant has been able to live here in a nice suburb in Sacramento", said Orange County District Attorney Tony Rackauckas.
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For years, the Orange County investigation into the Golden State Killer was led by now-retired Orange County sheriff's Investigator Larry Pool, who took up the case when he was assigned to the department's unsolved homicide team in 1997.
She said she was paralyzed by fear, afraid the man would kill them. They are believed to be among the victims of the Golden State Killer.
What did authorities know about the Golden State Killer?
A noon press conference held by the Sacramento District Attorney's Office and attended by law enforcement representatives from numerous California counties announced the arrest of Joseph James DeAngelo and the match of his DNA to two murders committed on March 13, 1980.
On Wednesday, he said the arrest of a suspect has brought closure after nearly four decades of anguish. His reign of terror gripped the East Bay area, Sacramento and Southern California.
Authorities say a serial killer committed at least 12 homicides, 45 rapes and dozens of burglaries across the state.
This story has been corrected to say DeAngelo's age is 72, not 77. "It's an emotional roller-coaster right now", Carson-Sandler, who now lives near Hilton Head, South Carolina, told The Associated Press in a telephone interview. He was apprehended in his Citrus Heights home, in Sacramento County, before being booked into jail in the early hours of Wednesday morning. In an HLN documentary on the case, she said she was dozing in bed with her son after her husband left for work.
He confronted them with a butcher knife and shone a flashlight in her eyes before tying them up. She says she has a lot of questions for him.
A former California cop was arrested and outed Wednesday as the infamous Golden State Killer - the fiend who murdered at least 12 people and raped dozens of women in the 1970s and '80s and whose crimes were chronicled in the recent best-selling true-crime book "I'll Be Gone in the Dark", authorities said. The long-sought suspect even called some of his victims after the attacks. In the months that followed, a slew of sexual assaults in the east area of Sacramento County and later Contra Costa County took place.
Jane Carson-Sandler was one of the first victims when she was sexually assaulted in 1976 in her home in Citrus Heights, the same community where DeAngelo was arrested at home.