Serial killer behaviors, postmortem rituals, and crime scene souvenirs are examined in Mark of a Killer.
In 1990, a serial killer terrorizes the University of Florida's campus, killing 5 students in under 4 days. "The Gainesville Ripper" leaves behind a bizarre crime scene where all the victims have been stabbed but the females have been posed like dolls.
In New Jersey four bodies are found dismembered, bagged, and thrown in roadside garbage cans. The "Last Call Killer" hunted his victims openly in piano bars but no one suspected he could be hiding in plain sight, working as a local nurse.
Dallas police discover three women murdered with their eyes surgically removed; police believe they have a deranged doctor on the loose until two rookie cops find themselves on the trail of a man with a talent for taxidermy and a hatred for women.
A killer hijacks the highways of Sacramento as several women are found strangled with their clothing cut into precise but odd patterns; a survivor leads police to a sports car driving deviant posing as a good samaritan to poach potential victims.
When the Hillside Stranglers are caught police realize they still have another serial killer running rampant in Los Angeles; he tortures and toys with his model victims while keeping pieces of their jewelry as he snaps their last photo ever.
Texas authorities pursue a killer who rides the rails and leaves a literal trail of bread crumbs after eating at victims' tables. When more murders are linked, the FBI names a Most Wanted suspect and a national manhunt for The Railroad Killer ensues.
Twin Cities, MN, police are hunting for a killer caller who confesses to a string of murders in a chilling, high-pitched voice, begging for forgiveness. No one can identify him until one woman survives a brutal attack.
In the summer of 1976, the NYPD are chasing a man shooting at couples in parked cars with a gigantic, .44 caliber handgun. He taunts the city with terrifying letters until police get a lead about a suspect who has shot a neighbor's dog.
Brooklyn shop keepers are afraid of closing time as a killer shoots his victims while locking up their stores. Police release surveillance footage to the press and ask the public for help to find a Duffle bag wielding murderer before he strikes again.
In the 1990s, New Yorkers are on edge as a killer leaves coded clues at crime scenes and declares his compulsion to choose victims based on their birth signs.
A rash of young men go missing around Chicago during the 1970's. When bodies start washing up in the river a pattern emerges. A small piece of evidence leads police to the house of a model citizen where his furnace puts the suspect in the hot seat.
Police discover a string of murdered women in shallow graves in very remote areas of the Alaskan wilderness. After months of investigation, police zero in on a local family man living a double life.
Numerous women are found dead by the side of the road with a unique ligature that looks like a dog collar and leash; detectives are stumped until a 17-year-old girl manages an escape from a vicious kidnapper, leading police to a serial killer.
The I-5 corridor in California is taken over by a brazen bandit who terrorises the highway with a blitz of assaults and murders; the only clue to the killer's identity is a specific athletic tape used to bind his victims.
A serial killer taunts Wichita for decades with brazen letters taking credit for horrific kills; at the introduction of the computer era, the killer gets sloppy and leaves a digital clue.
Louisiana is terrorised by multiple serial killers in the 1990s; the Zachary Police Department find the key to solving their cases when they discover personal items missing from each local victim.
A killer is murdering and mutilating young women along the Route 40 corridor in Delaware. But when investigators set up an undercover operation, the hunter soon becomes the hunted.
After multiple men are discovered brutally murdered, investigators determine that each victim was last seen with a handsome stranger they met in a bar. Police ask the public for help in tracking down a dangerous drifter before he kills again.
A series of women in the Seattle area are found brutally murdered and police realise they may have a killer stalking area nightclubs, charming his victims into submission.
Chicago police investigate the murders of several women, whose barefoot bodies are discovered in abandoned buildings.
Chicago detectives believe a serial killer is using the classified ads to lure and murder his victims. The investigation is set ablaze when flames obliterate evidence, until police make a shocking discovery.
A killer crisscrosses the Midwest leaving a string of victims along the interstate, but when he realizes investigators are hot on his trail the murderer suddenly changes his mark.
A cold blooded killer conceals his victim's bodies with trash, discarding them like garbage in the back alleys across Los Angeles.
A Houston killer taunts the media and authorities as he uses homemade ligatures to murder his victims.
El Paso investigators race to track down a ruthless killer that is burying his victims in shallow desert graves, dead or alive.
Chaos descends on Phoenix as two serial killers compete for the media's attention and the bodies pile up faster than the police can investigate.
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