A man convicted of shooting and killing a Moline man in 1988 has now confessed to killing the man’s wife the following day, according to the Moline Police Department.

Paul Anderson was convicted of first-degree murder after he shot Joe Brown in Bettendorf’s Devils Glen Park on March 5, 1988. Brown died of his injuries two days later.

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In the early morning hours of March 6, 1988, Brown’s wife, Laura Brown, was found stabbed to death in her home in the 200 block of 5th Avenue in Moline. No one was ever charged with the crime.

Moline Detective Mike Griffin conducted a cold-case review of the Laura Brown case, and Anderson confessed to Laura Brown’s slaying during an interview Tuesday at the Iowa State Penitentiary in Fort Madison, Iowa, where he is serving his sentence in Joe Brown’s murder.