Investigators have no suspects more than three years after Russell Dermond, 88, was discovered beheaded in his central Georgia retirement home and his 87-year-old wife Shirley was found 5 miles away murdered and floating in a lake. Putnam County, Georgia, Sheriff Howard Sills suspects the Sills were murdered by “a vicious enemy,” but the killer or killers are still unknown and free.

Macon Telegraph reporter Joe Kovac and Cold Case Research Institute Director Sheryl McCollum join Nancy Grace in this Crime Stories episode to examine the mystery of the Lake Oconee murders.

Also read Joe Kovac’s reporting: Vicious enemy’ may have killed Dermonds; Lake Oconee murders now 3 years cold

“Crime Stories with Nancy Grace” is now a national radio show, heard on SiriusXM’s Triumph Channel 132, five times a day. You can also subscribe and download the daily podcasts at iTunes and Google Play.

[Feature Photo: Police Handout]