He’d reportedly been trying to plea insanity, and was facing another go at parole this summer.
The reason for DeFeo’s death hasn’t been revealed, and is pending an autopsy at the time of writing this story.
DeFeo was serving a 25-to-life sentence after being convicted of murdering his family.
This news comes to us from Daily News, which reports that Ronald DeFeo Jr. died last Friday the 12th of March at Sullivan Correctional Facility in Upstate New York.