Monday

In the 1980s, the drug trade in New York City was a nightmare. Dealers made millions. Street violence was out of control. The NYPD battled the drug gangs only to become their target.

In the ‘70s and ‘80s a gang of thugs wreaked havoc on the island of Puerto Rico. Organized, experienced and deadly they seemed beyond the reach of the law.

George orwell’s concept of big brother remains in the realm of fiction. But as technology becomes more a part of our lives, it’s becoming increasingly more difficult to make a move without leaving behind an electronic trace. Cell phones, surveillance cameras, and atms track virtually every move. When it comes to solving murders, this isn’t such a bad thing.

Wisconsin v. Prokopovitz. When Victoria Prokopovitz went missing in 2013, her three grown children were beside themselves with worry. Her husband, James Prokopovitz, seemed oddly unconcerned about his wife’s disappearance, telling police she often wandered off and had twice tried to commit suicide. Despite a massive search, Victoria was never found. But a private detective who saw news reports of the missing woman offered his help to Victoria’s eldest daughter Marsha who kept up a Facebook campaign over the years hoping for clues about her mother’s disappearance.

From judges to city council members, sometimes officials who are given authority take it too far.

45-year-old Natalie Hagan is found dead on her bedroom floor after a heated argument with her brother-in-law. Now, Dr. G is the only one who can provide police with answers./ Eugenie Ademola, a healthy and vibrant teenager, dies after experiencing flu symptoms. Dr. G must find out what took her life so suddenly.

A wealthy, middle-aged woman dies suddenly and unexpectedly at home. An autopsy finds no signs of foul play and investigators are unable to determine the cause of death until they receive a call from the ex-wife of the dead woman’s husband. Her claims initiate an investigation, during which the sensitive nose of a toxicologist sniffs out murder.

A rich elderly woman is murdered and her home ransacked. A trail of blood was visible down one side of the stairs. Though investigators were able to lift prints from the crime scene, they failed to find a match and the crime went unsolved. Sixteen years later, advances in the science of fingerprint identification, and the development of DNA profiling, enable police to identify the print – and the killer.

In Miami, Florida, a sniper opened fire from the rooftop of a manufacturing plant, killing one employee and injuring two others in the parking lot below. Police discovered spent shell casings on the roof, and the gun was found in the yard of a nearby home. The shooter had scratched the serial number off of the gun, hoping to make it untraceable. But forensic scientists had a way to make the number reappear.

In 1992, residents in and around Seattle were terrified that their home -- or business -- or church -- would be the next target of a serial arsonist. More than 100 fires had been set, all apparently by the same person. This was the biggest arson case in American history, and it was solved with the help of behavioral profiling, hypnosis, and a skillful sketch artist.

Can the sound of a suspect’s voice reveal his lie? Can the crucial moment of crime, buried deep in damaged video, be revealed? Can computers isolate a guilty face in a crowd? No longer science fiction, these are the high-tech tools of the forensics trade.

Mother of three, Dianne Hood is shot to death by a masked gunman on her way home from a Lupus support meeting. Police initially assume it’s a robbery, but Lt. Joe Kenda uncovers a sordid web of lust and greed, revealing a killer no one ever expected.

In Louisiana, a brutal killer turned a rural area into his personal hunting ground. He preyed on the defenseless, the weak and the elderly.

American atheist madalyn murray o'hair and her family vanished in august 1995, leaving behind an ominous note claiming a family emergency. When the irs started looking for some of the organization’s missing money, they instead found a former employee with the motive to commit murder. Fellow atheist david waters was convicted and the complex case was finally put to rest.

When a young college student is abducted from a friend’s home in the middle of the night, the city of Reno lives in fear of who might be next. Dogged investigation leads detectives to a serial rapist who’s just escalated to murder.