Mass shooting accused apologises for cop's death

A United States man accused of shooting dead eight people, including a police officer, has given an extraordinary interview with local media apologising for his death.

The lives of Willie Cory Godbolt's victims were taken in three separate crime scenes in the southern US state of Mississippi.

The Mississippi Bureau of Investigation (MBI) has named the 35-year-old as the killer. He was taken into custody after being treated for a gunshot wound, CNN reports.

The shootings started around 11:30pm on Sunday (local time) where Lincoln County Sheriff's deputy William Durr, 36, and three women were found dead at a Bogue Chitto house, around 110km south of the state's capital Jackson.

At another crime scene in Brookhaven, about 17km north of Bogue Chitto, two boys were found dead, while at a third scene, a man and a woman were discovered killed.

Images of Godbolt's arrest were taken by a local newspaper the Clarion-Ledger, and he told them in an extraordinary interview he'd planned "suicide by cop".

"I ain't fit to live, not after what I done," he said in a video interview while handcuffed. He says he got into an argument with his estranged wife about their children.

He says he didn't intend to kill Mr Durr.

"My pain wasn't designed for him. He was just there," he said.

"We was talking about me trying to take the children home ... somebody called the officer ... that's what they do, they intervene. It cost him his life. I'm sorry."

Godbolt now faces seven charges of first degree murder and one charge of capital murder.