Melanie Goodwin, 19, was a sophmore communications major at the University of North Texas when she was killed in September 2007. She left behind a large network of grieving friends and family.
Police would credit the presence of surveillance cameras at key sites -- convenience stores, gas stations, a parking lot -- on the night of her murder with helping to track down and convict the killer.
Following are pictures from her final weeks and months -- and of her community's effort to honor her memory.
Watch her story on "Primetime Crime" TONIGHT at 10 p.m. ET.
(Courtesy of Goodwin family)