"For over 40 years, countless victims have waited for justice", Schubert said.
"Very possibly he was committing his crimes during the period he was employed as a police officer", Sheriff said in the press conference.
DeAngelo reportedly was sacked from Auburn's police department after shoplifting, according to a newspaper article tweeted by Billy Jensen, a co-writer of the new book "I'll Be Gone in the Dark" about the Golden State Killer. The crimes occurred in 1978 and 1979, which would coincide with DeAngelo working as an Auburn police officer.
Along with law enforcement officials, people across the country have been following the case for years. "I believe that DNA technology is the last practical hope of resolving the who and why of [their] deaths".
Sacramento District Attorney Anne Marie Schubert and Sheriff Scott Jones, along with other law enforcement leaders, including Ventura County District Attorney Greg Totten, held a press conference in Sacramento Wednesday afternoon to discuss the case. The crimes stretch across 10 California counties, Schubert said.
Mr DeAngelo was arrested on two counts of murder with special circumstances.
DeAngelo, who has adult children, was a police officer in Exeter in central California from 1973 to 1976, officials said.
But he hadn't had an outburst in several years, she said, and she assumed he was mellowing in old age or receiving professional help.
"Finally after all these years, the haunting question of who committed these bad crimes has been put to rest", Rackauckus said.
But there are many more victims. "Sleep better tonight. He isn't coming through the window". "He's now in jail, and he's history".
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The Golden State Killer's fifth victim, Jane Carson-Sandler, told The Island Packet newspaper that she had been informed by detectives that there had been an arrest.
After briefly speaking about his new "Keep California Safe Proposition" that he is collecting signatures to get on the November ballot, Harrington closed by addressing the relief that victims and the families of victims could feel in the wake of the arrest.
Multiple sources report an arrest has been made in the East Area Rapist case.
VIDEO: Inside Michelle McNamara's "obsessive" quest to nab Golden State Killer Police in both cities would not talk about their cold cases.
The book, from the late writer Michelle McNamara, became a New York Times bestseller when it was published in February after McNamara's unexpected death in April 2016 from an undiagnosed hearth condition.
As he committed crimes across the state, authorities called him by different names.
Joseph James DeAngelo has been recognized because the so-called Golden State Killer believed to have dedicated 12 killings and no less than 50 rapes throughout California from 1976 to 1986, authorities mentioned.
FBI sketch for the "Golden State Killer."FBI sketch for the "Golden State Killer".
Armed with a gun, the masked attacker terrorized communities by breaking into homes while single women or couples were sleeping.
"No one thinks they live next door to a serial killer", Tapia said. He also posted a photo of a news article about DeAngelo on Twitter and called him the suspect.
The serial killer's twisted spree - which has for decades baffled cops, victims and true crime buffs - began with rapes in east Sacramento County in the summer of 1976.