Homicide: Hours to Kill

Is there a link between a schoolteacher's murder, a burglary, and a love triangle? Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

Angry colleagues and broken hearts: could an ex-Marine's killer be out for revenge? Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

Circumstantial evidence points to an unlikely suspect when a single mum is murdered. Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

A nationwide search for a killer begins after a yoga teacher is shot on his porch. Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

A macabre message is found after a woman is killed in her home. Who wrote it? Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

Blood evidence and a life insurance policy lead to the killer. Support information at channel4.com/support. - Graphic reconstructions, descriptions of violence

An FBI tip about a double murder points to a radical religious cult. Support info at channel4.com/support. - Graphic reconstructions, descriptions of violence

Detectives are stumped by the sniper-style shooting of a restaurant owner. Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

A Tucson business tycoon is killed with a homemade car bomb. Is the mob responsible? Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

Could answers about who killed a woman be found in the victim's dating history? Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

A woman is found dead in her car. Did a robbery go wrong or is the scene staged? Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

Shady deals, IOUs, and lawsuits: a man's murder has multiple possible motives. Support at channel4.com/support. - Graphic reconstructions, descriptions of violence

Police make a grisly discovery while searching for a missing businessman. Support at channel4.com/support. - Graphic reconstructions, descriptions of violence