01/12/2014 10:53 GMT | Updated 01/12/2014 10:59 GMT

Michael Watkins Shot Mother With Bow & Arrow, Gun & Stabbed Her For 'Giving His Father Cancer'

A man has informed police he shot his mother with a gun and a bow-and-arrow and then stabbed her because he believed she had “stolen his diamonds and given his father cancer.”

The Okaloosa County Sheriff's Office in Florida received a call at 2:48 a.m. Sunday reporting a man was knocking over Christmas decorations and yelling.

When deputies arrived, they found 65-year-old Gloria Watkins slumped forward in a chair with arrows protruding from her head.

Michael Watkins is said to have told police he attacked his mother because she had 'stolen his diamonds and given his father cancer'

Her son, Michael Watkins, 42, admitted to the killing, according to an arrest report.

"You see that, that's death," Watkins said as he pointed to his mother, according to the report.

Watkins claimed his mother "stole his diamonds and also gave his father cancer" and that "he had to kill her because she was trying to kill him," the report said. The report did not say why or how she was trying to kill him.

Watkins was charged with murder and resisting arrest without violence.

The sheriff's office said Watkins ignored repeated commands to get on the ground. After eventually complying, he stood up and retrieved a large knife from a sheath on his belt, authorities said.

Deputies used stun guns on Watkins twice. An autopsy will be conducted on the victim.