Risky Business: Employee Violence in the Workplace (1998)

Considered by corporate human-resource departments to be the darkest, most bizarre video training-film ever produced, "Risky Business" demonstrated the various categories of troubled employees and the potential warning signs which might lead to a confrontation. In the case of this video, an employee is murdered on the job and, using flashbacks, the clues are given to solve the "whodunnit" by the end of the 39-minute video.