AUBURN, N.Y. (AP) — A man convicted of killing his parents says he was allowed to fix locks inside a maximum-security New York state prison before an elaborate escape plan he had developed was uncovered.

The Post-Standard reports (http://bit.ly/2vltQXH ) Gordon "Woody" Mower told the Syracuse newspaper that guards at the Auburn Correctional Facility had him repair locks throughout the prison nearly every day for a year starting in 2014.

Mower says the tasks ended in April 2015 after he was caught plotting to escape under a truckload of sawdust from the prison's woodshop.

His details of fixing locks were included in a deposition from a disciplinary hearing at the prison in 2015. A civilian employee testifying at the same hearing said Mower "did quite a lot for the lockshop."

Prison officials say they're investigating Mower's claims.

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Information from: The Post-Standard, http://www.syracuse.com