A convicted murderer serving multiple life sentences in Ohio has been indicted in the death of another inmate.

A Lucas County grand jury on Monday indicted Lawrence Michael Hensley, 43, formerly of Sidney, in the strangulation of inmate Bradley L. Hamlin, 24, formerly of Mantua, Ohio, according to the Ohio Highway Patrol.

According to the patrol, OSP investigated the death in September 2012. Hamlin was found unresponsive in Hensley’s cell at the Toledo Correctional Institution and died two days later at St. Vincent’s Mercy Medical Center in Toledo.

Hamlin had begun a 60-month sentence in November 2011 for burglary, breaking and entering and theft out of Portage and Cuyahoga counties.

Following Hamlin’s death, Hensley was transferred from the Toledo prison to the Southern Ohio Correctional Facility in Lucasville, according to OSP.

Hensley is serving four life sentences plus 80 additional years in the July 1999 deaths of three teenagers and a Bible study teacher and the wounding of a fifth person in Shelby County.

Hensley was sentenced in March 2000 as part of a plea agreement.