WHO KILLED GAIL ANN KALINOWSKI?

As reported by https://it.findagrave.com/memorial/84033637/gail-ann-kalinowski, 13-year-old Gail Ann Kalinowski was kidnapped on September 8, 1971 from Manville in Somerset County, New Jersey, near the counties of Bridgewater, Franklin and Hillsborough. Her body was found 18 days later between the Raritan River and N 13th Ave & Dukes Parkway E. There is talk of death (13th major