December 19, 1979 is special night for 18 year old highschool senior Michelle Martinko. After attending a Christmas banquet for her school choir, she decides to go to the new Westdale Mall in Cedar Rapids, Iowa for a little shopping. When she fails to return home that night, her panicked mother contacts the police. Michelle is found early on the morning of December 20th, stabbed fatally in her parents Buick, still in the mall's parking lot. Although she was last seen with a male classmate, the main suspect in the eyes of the police and community is her jealous ex boyfriend. With no evidence linking anybody directly, the case goes cold. It will take a company who had a hand in solving the Golden State Killer case, to finally bring Michelle and her family justice.

If you have seen or have a possible sighting of Susana Morales, her loved ones ask that you please take a picture and contact Gwinnett county, Ga police department at 770-531-5300 or text 470-331-9117

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Source material:

An Exact Match - Michelle Martinko murder case evidence photos (cbsnews.com)    Missing 16-year-old Gwinnett County girl last seen in July (fox5atlanta.com)

Dateline: Unforgettable