Greg Fournier will revisit the Library on Saturday, July 15.  Fournier is the author of Terror in Ypsilanti: John Norman Collins Unmasked, a true crime account of the slayings of seven young women, including a thirteen-year-old Ypsilanti eighth grader, in Washtenaw County between 1967 and 1969.  Collins was arrested, tried and convicted of the strangulation murder of only one of the seven victims.  His last victim was killed in the basement of this uncle, who was a Michigan State Police trooper.  Fournier was a student a Eastern Michigan University at the time of the killings and had several brushes with the killer.