In 1989 Mary Gill and Jeanne Gilbert were overnight employees at Days Inn properties in Indiana. Gill worked at the Merrillville location, and Gilbert near Rensalear. In the early morning hours of Friday March 3, each property was robbed, the women assaulted and murdered.
As DNA technology improved the murders were linked with the 1987 slaying of Super 8 motel employee Vicki Heath and two additional assaults. This serial killer has never been identified.