REAL LIFE SAW! COPS CATCH A MAN CUTTING OFF HIS OWN LEG WITH A POWER SAW!

Cops stumbled upon a horrific murder-suicide when they arrived at a Massachusetts home to find a man cutting his own leg with a power saw.

Police in Plymouth, Mass. had been called to the house late Monday by concerned relatives.

When they opened the door, they witnessed Keith Lincoln pick up a circular saw and cut into one of his legs causing "serious injury," said District attorney Timothy Cruz.

As they continued inside, they found a dead woman and two dead dogs, police said.

Lincoln, 49, was rushed to a hospital, where he died from blood loss.

It was not immediately clear how the woman died, but police are investigating it as a murder-suicide.

Authorities said they would have to rely on dental records to confirm the woman's identity because of the condition of her body, The Boston Globe reported.

Officials did not know how the dogs died.

Neighbors said Lincoln lived with his wife, Jettie, and that the couple had moved from Vermont last year.