An 81-year-old man is charged with the first-degree murder of his wife in Johnston County.

Around 4:30 p.m. on Monday, the Johnston County Sheriff's Office received a 911 call from a man stating he shot his wife at their home on Buffalo Road near Archer Lodge.

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Roger Gray Preston told deputies his wife was in an RV parked in the front yard. Deputies found Sandra Cobbler Preston dead from a gunshot wound inside the vehicle. She was 77 years old.

Roger Preston, 81, was charged with murder. He is being held at the Johnston County Detention Center without bond.

WRAL News obtained a 911 call made from the scene. 

"I just shot my wife," the caller, who identified himself as Roger Preston, said. "Me and my wife have been having marital problems."

The 911 operator then asked, "You said you shot her, is that right?"

The man answered, "I am so sorry, I really loved her ... I just lost it, and I shot her two or three times. It just blew my mind that she would do me like she has."

He was cooperative on the phone and told the 911 operator he would be waiting for authorities to arrive.

"I will be in the yard sitting on the front porch," he said.

When the 911 operator asked about his wife's condition, Roger Preston answered, "I am with her right now, I am with her right now in the motor home ... she is sitting in the middle of the home leaning against the door. I shot her in the head."

The 911 operator told Roger Preston how to control his wife's bleeding using a clean T-shirt and advised him to keep his hands visible when deputies arrived.

"Let me put the gun out here on the porch," he said.

WRAL News on Tuesday spoke with Roger Preston's daughter, who said her father had been married to Sandra Preston, her stepmother, for over 40 years. She said the couple had just returned from a trip, and she was not aware of any martial problems.

"This seems like a bad dream or a horror movie," she said. "One minute I'm shocked, I'm frozen. I don't know what to do."

The daughter added her father was diagnosed with Parkinson's disease a few years ago. 

If you or someone you know is a victim of domestic violence, you can call the National Domestic Violence Hotline at 1-800-799-7233 (SAFE). For county-by-county help, the North Carolina Coalition Against Domestic Violence has a list of resources at nccadv.org.