View Comments MANSFIELD - John Mack Jr. could face the death penalty if convicted on aggravated murder charges in the death of his ex-girlfriend, Melinda Kay Davis. Mack was indicted on 17 counts Wednesday including aggravated murder, kidnapping, and tampering with evidence. Davis, 33, of Shelby, was reported missing Feb. 25 and her body was found in the trunk of her car March 14 in an apartment parking lot on the western edge of Columbus. A Richland County grand jury met in a special session this month and found that Davis' death occurred "while the offender was committing, attempting to commit, or fleeing immediately after committing or attempting to commit kidnapping and either the offender was the principal offender in the commission of the aggravated murder or, if not the principal offender, committed the aggravated murder with prior calculation and design."