A man and a woman were found shot to death in a home in Raynham, Massachusetts on Friday. Investigators said two young children were inside the home when police arrived. 

Police responded to the home on Elm Street after receiving a 911 call just after noon on Friday. 

The two young children who were inside the home were unharmed, according to Bristol County District Attorney Thomas Quinn. 

Inside a locked second-floor bedroom, police discovered the bodies of 37-year-old Marie Hunt and 35-year-old Mark Henshaw. Investigators said on Monday that their cause of death was a murder-suicide.

According to the DA, Hunt was located on the bed with a gunshot wound to her abdomen. The medical examiner determined the cause and manner of her death to be a homicide. 

Henshaw was also located on the bed with a gunshot wound to the head. The cause and manner of his death was determined to be suicide.

Quinn said both adults lived at the home.

Hunt's brother, Justin Firsch, said she was the mother of three children. He said two of them were in the house when the shooting happened. 

"She was pretty energetic. She liked to go out. We would go out into the woods shooting and fishing all the time," Firsch said. "She was one of the people you'd talk to the most." 

Firsch said his sister worked as a prison guard in Bridgewater for the last several years. He says he did not know the relationship between his sister and Henshaw. 

"Everyone is trying to figure out what the hell happened," Firsch said.   

The shooting is under investigation by the Massachusetts State Police and the Raynham Police.