Denise Marie Seamen, a 17-year-old girl from Tinicum, Pennsylvania, tragically disappeared on the evening of May 10, 1975. She was last seen leaving her home to meet her boyfriend, James Koenig, at the MacDade Mall in Glenolden, Pennsylvania. However, she never arrived at the mall, and her boyfriend reported her missing to the police.
On October 17, 1975, Denise's skeletal remains were discovered in a marshy area in Tinicum Township, Pennsylvania. She had been shot in the head, and her d
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