Beverly Logan loved working as a certified nursing assistant. So, when she didn't show up for work at Presbyterian Manor in Salina four years ago, it caused some concern. The quiet grandmother lived alone. When officers checked-on her, they found Logan dead on her kitchen floor--the victim of a brutal attack.

Coming up on Eyewitness News Sunday, Factfinder 12 Investigator Melissa Scheffler takes you inside the case. You'll see the leads detectives have followed, you'll hear from her son, and you can begin to understand why Logan's case haunts investigators.