The couple apparently never got divorced even though they separated decades ago.

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At a Crimecon panel about the Golden State Killer on Friday, an audience member said he had heard that suspect Joseph James DeAngelo had been estranged from his wife, a divorce lawyer, for more than 20 years. The audience member asked if it was possible that she stayed married because she “knows something” and wouldn’t want to testify against DeAngelo.

Paul Holes, a recently-retired investigator with the Contra Costa County District Attorney’s Office, was cagey in his reply.

“I’m very well aware they are estranged,” Holes said on the panel in Nashville. “It’s an unusual situation that someone so well versed in the divorce process has chosen not to have completed that process, and it becomes suspicious. I cannot go into any more detail than that at this time.”

DeAngelo’s estranged wife Sharon Huddle works as a divorce attorney in Roseville, part of Sacramento County. Oxygen.com called her law firm to request a comment, which wasn't immediately returned. A Yelp page that appears to be for Huddle’s law firm says she also works in real estate law.

The page has only one review, from 2015, and it's an angry one that ends on this note: “I personally think that sharon is pure evil.”

The review, which appears to be written by a disgruntled client, accuses her of unprofessional behavior and cheating clients.

“Sharon goes through staff like underwear," it says. "she can't keep anyone in there long. Sharon screams yells and cusses at her staff right in front of clients. It is so very awkward. If you are her client, there is a likely chance that her anger, hate, and narcissism-like behavior will spill over to you. I was screamed, yelled and cussed at by sharon on many of her 'off' days.”

One other person accused her of “odd behavior” on Twitter.

Sharon Huddle is my current attorney and the attorney who represented me during my trial in Peter J. McBrien's court. She is also the wife of #EastAreaRapist #GoldenStateKiller.....this explains it all! She must have known and explains her odd behaviour. https://t.co/RzlWrgbTcK — Ulf J. Carlsson (@UlfCarlsson10) May 4, 2018

According to the California State Bar, Huddle has no disciplinary actions on her license. She has an active license to practice law in California and she was admitted to the bar in 1982. In 1987, she was inactive for eight months. It's unclear why, but one of her and DeAngelo's daughters was born in 1987. She practices in Roseville.

Huddle graduated from San Juan High School and American River College in Sacramento before attending McGeorge School of Law, University of the Pacific in Sacramento.

Huddle and DeAngelo wed on November 10, 1973, The Los Angeles Times reported. DeAngelo was 27 and Huddle was 20, marriage records show. They separated in 1991, according to KTXL in Sacramento, but it appears they never officially divorced.

Tom Miller, a reporter at KCRA in Sacramento, tweeted that they are still technically married, information he said he learned from a law enforcement source.

Huddle’s brother James Huddle told Oxygen.com he thought DeAngelo was a good father. He also revealed that DeAngelo once brought up the serial killer case in the early 1970s.

“He actually asked me about it once. He said, ‘What do you think of that East Area Rapist? What would you do, Jim?’” Huddle said. “(The case) was a big deal at the time. We were all concerned about our families.”

[Photo: Sacramento County Sheriff’s Office]