Grace Packer's dismembered remains was found on Halloween, three months after she was reported missing by her mother Chris Harris has been a senior true crime reporter for PEOPLE since late 2015.

Sullivan, 46, pleaded guilty in February to first-degree murder, rape of a minor, and abuse of a corpse in the death of Grace Packer, 14, whose dismembered body was found by hunters in October 2016.

Packer had previously been charged with child endangerment and obstruction. Police say she provided misleading information to investigators when reporting that Grace was missing from their ...