 Barksdale and Shannon were both pronounced dead at the scene. The investigation is ongoing and no further details were immediately provided. A Franklin man pled guilty to aggravated arson. Columbia Fire and Rescue say Jeffrey Lee Mueller intentionally set fire to the building and shopping cart storage area outside the Kroger on Nashville Highway in Columbia in 2022 while the night stock crew was working inside. In addition, he allegedly stayed at the scene as police and firefighters responded to the incident.