His parents Mark Williams and Joanne Parker say they "can't rest" without knowing how their son died.

BBC: Marc Williams death: Family appeal for information

"There did not seem to be a great deal of coordination by high schools or donors to ensure that there wasn't a great deal of overlap, " says Mark Williams, founder and president of the Center for Higher Education Support Services, recalling his five years as a financial aid administrator at the University of North Carolina at Wilmington.

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