1. Hog Trail
A serial killer is on the loose in central Florida and all police have to go on are the bodies of four mutilated, severely decomposed men.
Forensic Factor — Season 4
2. Yosemite
Three women go missing while vacationing in Yosemite National Park.
3. House Hermit
In April 1992, an elderly couple is found dead in the trunk of their car at their home in upscale Toronto.
4. Sniper
The largest police investigation of the decade was mounted to catch a ruthless sniper who terrorized residents of the Washington, D.C. area.
5. Dead Man's Hollow
Investigators called to a farmer's field find an unidentified burned corpse and use state-of-the-art forensics to find the murder scene.
6. Olympic Bomber
The 1996 Summer Olympics in Atlanta, Georgia are rocked by a massive pipe bomb explosion. A woman is killed and hundreds injured. Subsequent bombs at an abortion clinic and a gay bar show a similar M.O., and increasing refinement. Police have no clue who is behind the bombings until they receive a letter signed by 'The Army of God', an anti-abortion, anti-gay, white supremacist group.