In 1982, 81 year old Bertha Hughes was found brutally murdered in her Salt Lake City home. Although neighbors reported a suspicious male in the area the day before, the trail went cold. Unfortunately, Bertha was not the only elderly woman murdered in the area during the same decade. 

https://www.newspapers.com/image/602290418/?terms=bertha%2Bhughes

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https://murderpedia.org/male.T/t/troyer-daniel.htm

https://www.leagle.com/decision/19952092910p2d118212089

https://www.newspapers.com/image/612928557/?terms=daniel%2Bray%2Btroyer

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https://www.deseret.com/1999/6/12/19450272/suspect-finally-admits-he-killed-woman-in-85-br-for-that-crime-and-an-88-slaying-he-gets-life-in-pri

https://www.sltrib.com/news/2019/12/11/man-arrested-iowa/