The bodies of several women began turning up in and around the city of Vienna, Austria. Viennese police turned to the FBI for help.

The reputed boss of the Genovese crime family, Vince Gigante wandered the streets of New York wearing only pajamas and a bathrobe, but the FBI was convinced he was anything but crazy. The FBI helped convict Gigante of murder and murder conspiracy.

The body of an unidentified young woman turned up on a highway in a small Pennsylvania town. Agents persisted to identity the body and to find the killer.

A stranger snatched an eight-year-old girl as she played in her Tucson, Arizona neighborhood. Within hours, a drifter who was out on parole for abducting and molesting children, but he was nowhere to be found and time had run out.

Posing as a fashion photographer, serial killer Christopher Wilder lured young women from shopping malls with promises of fame and fortune. Most ended up dead. national publicity that the FBI created led to the capture of the suspect.

Young women were being abducted from their own front yards in broad daylight. The FBI was determined to put an end to the serial killer's deadly game of cat and mouse.

A couple engaged in a gruesome crime spree that spanned six states and left eight people dead-including children.

Two officers had been shot and one had been murdered in Washington, D.C.. Each had been sitting in their patrol cars when a man sneaked up and opened fire. The FBI was brought in to help catch the cop killer, and this led to a violent gun battle.

Street gangs in Washington D.C. enforced their territories with lethal violence. Authorities vowed to bring the entire gang to justice while the gang leader had fled to Africa.

Police and FBI agents track a serial killer in a cross-country manhunt.

A young woman was snatched from her home on a bright spring morning. After several days of searching, a former FBI profiler narrowed the suspect list to one.

In a Georgetown coffee shop, three employees were shot to death. Metro D.C. police turned to the FBI for help, hoping the Bureau’s technical expertise could bring justice for the victims of the triple homicide.

In a suburb of Las Vegas, two robbers ambushed an armored car, killing both guards and seizing thousands of dollars. Authorities linked the crime to a series of armed robberies on gambling houses, including the MGM Grand Hotel and Casino.

The bodies of several young women began turning up in shallow graves in the Alaskan wilderness. FBI profilers mapped the criminal's mind.

Lured by the easy wealth of the narcotics industry, crooked cops in the New Orleans Police Department began breaking the laws they were sworn to uphold in the early 1990s.

A series of brutal bank robberies and murders led to an exhaustive eight-month investigation by the FBI. What followed was the bloodiest firefight in FBI history.

A woman vanishes, and police suspect that her powerful ex-lover, a married man, was responsible. When investigators can't find the woman's body or the murder weapon, the FBI's only hope was to go undercover and turn brother against brother.

Masked bandits pulled off a daring mid-day bank robbery. With no evidence leaving behind, the FBI forced their own luck.

Glendale, Arizona mall, local authorities and the FBI scrambled to recover its cargo of nearly a million dollars.

A California man was found dismembered. The murder suspect was found six months later when he was caught robbing an Arizona bank and sentenced to life. When he escaped from prison, the FBI led a manhunt for the killer.

In the season 3 finale, Drug gangs terrorized Harlem, New York neighborhoods. After a 10-year-old boy became a victim, the FBI formed a task force called C-11, designed to dismantle the gangs.

A mother discovered her 10 year-old son was missing from his school. The search would cover a thousand miles. Agents were raced to find the kidnapper and the missing child.

The hunt for serial killer Angel Resendiz, also known as the "Railroad Killer."

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In 1994, a rash of home invasions plagued the Detroit area. Each time, masked men disguised as police officers broke in with assault rifles and stole money and jewelry. But when one homeowner shot back, the identity of the intruders was revealed.