The key to solving the toughest homicides lies somewhere within the final 24 hours of the victim�s life. This true-crime documentary series follows investigators as they piece together events during this critical window.

When vibrant Sherry Rasmussen is found shot to death in her Van Nuys, California home in 1986, investigators suspect her husband is involved in the horrific murder.

When a 19-year-old struggling to make it on her own goes missing, her family kicks into high gear to find her. As precious time runs out and the hope of bringing her home alive grows dim, two unlikely people team up to confront a dangerous predator

Accused: Did I Do It

A man is killed instantly after a head on collision with a young mother driving home from a late-night shift at a Florida hotel.

When vibrant Sherry Rasmussen is found shot to death in her Van Nuys, California home in 1986, investigators suspect her husband is involved in the horrific murder.

When the battered body of Shawna Yandell, 16, is found floating in Washington State's Yakima River in 1993, detectives first suspect those closest to her. The case grew cold until new DNA technology revealed a callous killer that no one suspected.

Robbie Coltrane's Critical Evidence

An old carpet dug up by workmen in a Cardiff back garden in 1989 was the beginning of a case that would push the boundaries of forensic science. The carpet contained human bones - but whose?

Killer Britain With Dermot Murnaghan

Rahim Mohammadi betrayed Lea Adri-Soejoko's kindness, killing her in a shocking act that shattered a community. A tragic story of obsession and betrayal.

In Gwinnett County, a beloved special education teacher is gunned down in broad daylight when the suspects' plan to score some easy money spins out of control.

A man living at an extended-stay hotel is shot dead in his room after a night of gambling with friends turns into more than anyone bargained for. In Mobile, a young woman helps a friend in need and pays the ultimate price.

When gambler Scott Martinez, 47, is found eviscerated by a sword in his La Mesa, CA home, investigators can't tell who is telling the truth within his inner circle... It will take 13 years and an advance in DNA analysis to find his killer.

Green Eyed Killers

In Temecula, a southeastern city in Riverside County, California, the quiet bedroom community is rattled when 22-year-old Maria Ines Lopez goes mysteriously missing. On October ninth of 2005, she meets with her ex-boyfriend, Gustavo Valencia.

Somebody's Hiding Something

When police find 46-year-old Jerry Moore brutally stabbed to death in his own living room, they suspect a home invasion turned fatal. But mysterious hand written letters sent to Jerry brings up the question - did Jerry know his killer?

Murdertown With Anita Rani

With first-hand testimony from family members, police officers, witnesses and reporters, we shine a light on some of Britain's darkest murder locations, examining the crimes that rocked these communities.

Dermot Murnaghan is joined by former Met detective Clive Driscoll to look back at the case of Harry Jarvis, the cheating husband who kept his mistress in the shed while plotting to murder his wife.

When police arrived at the scene of a car crash outside the village of Hawarden on January 3rd 1993, they assumed it was just a tragic accident. The victim was Madallin Jones, the wife of serving police officer Steven Jones.

Murder In The 21st

The peaceful town of Mountain City, TN is rocked when a beloved young couple is found brutally murdered in their home. As police search for their killer, they uncover a family enmeshed in sinister secrets and lies.

Green Eyed Killers

Teenager Jay Sewell's life was taken in a brutal attack orchestrated by jealous Daniel Grogan, who had heard that Jay was seeing his former girlfriend.

Meet, Mary, Murder

After meeting at a salsa club, Lulu and Ramon Sosa find they make a good team and marry. But after having financial difficulties, the relationship breaks down. Soon after, the FBI are tipped off that one of them has hired a hitman.

A frightening assault ends in tragedy, when teenagers shoot splat ball guns at two brothers playing a nighttime basketball game. A fight ensues between the youths, leaving a 17-year-old dead at the scene.

Homicide's Elite

One fateful night in 2005, a bartender picks up alcohol for an upcoming event. Hours later, he is pronounced dead from gunshot wounds. In 2008, detectives are assigned to the cold case and jump in where the investigation left off.

When a missing mother is discovered to be working in secret as an escort, the list of suspects grows.

When the severed head of a wife and mother is found, Kenda uses forensics and interrogation to find both her body and her killer.