A Mississippi man was sentenced to 40 years in jail for killing his girlfriend with a homemade shotgun.

Errick Nichols, 55, pleaded guilty to second-degree murder for shooting Betty Allman, who was found dead in her bed.

On Jan. 2, 2020, the Madison County Sheriff’s Department went to 192 Victoria Lane in Camden, where they found Nichols on the scene near a small travel trailer located in a field. Inside the trailer, Betty Allman had been shot in her bed and was deceased.

Investigators say Nichols used a homemade shotgun made from a pipe and welded handle to kill Allman.

Investigators say an argument between the two led to the shooting.

The couple had moved to Madison County from Kansas City just a month prior.

Nichols had previously been convicted of aggravated assault in Hinds County and attempted murder in Illinois.