Northern California detectives have announced an arrest after re-testing DNA in the cold case of a 94-year-old woman they say was “brutally murdered.”

Armando Cuadras, 29, who was arrested Wednesday, is the second person Yuba City police have charged in the 2013 murder of Leola Shreves -- a woman who had 22 great-grandchildren and 13 great-great-grandchildren.

Shreves’ 20-year-old next-door-neighbor, Michael Alexander, was arrested a short time after the murder when police said he told detectives he had “two sides” and that “Angry Mike” committed the crime, the Sacramento Bee reported Thursday, citing a local newspaper.

Prosecutors dropped the case against him, however, after saying in court papers that an analysis of DNA evidence found at the scene excluded him as a suspect.

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Alexander spent three years in jail awaiting trial. He settled a lawsuit for wrongful arrest last year for $50,000, the Marysville Appeal-Democrat reported.

In a news release announcing Cuadras's arrest, Yuba City police said blood found at the crime scene matched his DNA.

CBS 13 Sacramento reported a new process for analyzing DNA enabled detectives to produce a familial match that led to the arrest.

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Assistant Police Chief Jeremy Garcia said Cuadras is the first person to be identified as a suspect and arrested under this new DNA analysis technique.

Cuadras was jailed without bail.

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“He really has no idea we were coming,” Sgt. Steve Thornton told CBS 13. “For him, it was total shock.”