Army sergeant's death uncovers secret affair, murder plot concocted by wife, lover

"20/20" explores the 2018 murder of Sgt. Tyrone Hassel III and a murder-for-hire plot discovered by investigators that was made between his wife and her secret boyfriend.

On New Year's Eve 2018, Army Sgt. Tyrone Hassel III was shot, multiple times, as he stood near his vehicle in the driveway of his father’s home in Michigan, where he was staying with his wife and their almost 2-year--old son.

The shooting prompted a panicked 911 call from Hassel’s wife, Army Spc. Kemia Hassel, who was inside the home at the time.

Jaramee Peppers, one of the St. Joseph Township Police officers responding to the scene, told "20/20" he remembered Kemia Hassel being emotionally distraught as her husband was dying.

"We were lifting the gurney onto the back of the ambulance that got him in there, and I stepped back .... she's going past me and trying to climb into the ambulance," Peppers said.