On a cold evening in December 1976, 12-year-old Jill Robinson left her Royal Oak, Michigan, home after an argument with her mother and was last seen riding her bicycle by a family friend. Initially treated as a runaway, Jill did not return and four days later, on December 26, a motorist found her body beside Interstate 75 in Troy, within sight of the Troy police station.

Jill was fully clothed and still wearing the backpack she had when she left home. An autopsy showed she had been killed by a shotgun blast to the face. Investigators later noted she had been fed and her body and clothes appeared cleaned before being left in the snow. Her killing was linked to a series of child murders attributed to the Oakland County Child Killer; Jill is the second of four confirmed victims.

No arrests have been announced and the case remains unsolved. Does anyone have information about Jill’s movements on the night she left home or about strangers seen in Royal Oak or Troy that week?