WARNING: GRAPHIC IMAGES Oxygen's two-night true-crime special Lovers' Lane Murders focuses on the slaying of eight men and women at the Colonial Parkway in Virginia The double homicides took play over a four-year span, starting with the murder of Cathy Thomas, 27, and Rebecca 'Becky' Dowski, 21, in October 1986 Nearly a year later, David Knobling, 20, and Robin Edwards, 14, were found shot in the head along the bank of the James River in September 1987 Christopher Newport University students Richard CallLess, 20, and Cassandra Hailey, 18, vanished in April 1988 after attending a party together CallLess's car was found at a York River, but their bodies were never discovered