TOPEKA, Kan. (AP) — Parole has been granted to an inmate convicted of killing a Topeka man and removing his tattoos and teeth to prevent identification.

The Topeka Capital-Journal reports that a date for Kenneth Cook’s release hasn’t been set. Kansas Department of Corrections spokesman Jeremy Barclay says a release plan must be put in place first. Cook was convicted of the 1992 killing of 33-year-old Charles Duty, whose body was found in the Wakarus River. Duty’s prescription drugs were stolen.

Cook’s initial sentence left him ineligible for parole for 40 years. But the Kansas Supreme Court found that post-death mutilation doesn’t warrant a “Hard 40” sentence. Later the first-degree murder sentence also was overturned, and Cook was retried for second-degree murder. His final sentence made him eligible for parole after 15 years.