The mastermind of the Indianapolis Richmond Hill explosion, Mark Leonard, was found dead in jail Tuesday morning at the Wabash Valley Correctional Facility, according to the Department of Correction.

Mark Ray Leonard, the man convicted in the Richmond Hill explosion, was sentenced to 50 years in prison Wednesday for trying to hire a hitman to kill a witness.


Leonard’s 50-year-sentence will be served consecutively alongside his current two life sentences without parole. source

Leonard was arrested in December 2012, along with his brother, Bob Leonard Jr., and then-girlfriend Monserrate Shirley, in connection with the explosion on the southside of Indianapolis that killed Dion and Jennifer Longworth and damaged or destroyed nearly 100 homes.