When a U.S. Army sergeant, is fatally shot on New Year's Eve, police are stumped, until they receive a tip about a lethal love triangle.

On the night of the murder, police find Army Sergeant Kemia Hassall cradling her dying husband in her arms. For the next two weeks, she behaves like a grieving widow. Until investigators discover she's been having an affair with another soldier.

From crime to investigation, trial to verdict, this true crime special goes inside one of the USA's most high-profile murder cases.

From the series Behind the Crime.