WHO KILLED 1972 JANE DOE WEST MILFORD?

According to https://newjerseygirlmurders.org/cases.htm, the body of a naked black woman was found on March 25, 1972 on East Shore Road in West Milford, New Jersey, bordering Tuxedo Park, New York. The victim had a tattoo of a heart and cupid’s arrow addressed to one Sonny. It is not clear who this Sonny was, since no