A family was grieving Monday after a Texas woman accidentally shot and killed her husband while trying to fend off a Pit Bull that threatened their grandchildren.

Betty Walker and Robert Walker Sr., of Houston, Texas were visiting their son’s Jackson, Mississippi home Friday when a neighbor’s eight-month-old Pit Bull named Cocaine jumped over the fence and reportedly threatened their grand children.

Robert Walker Sr., a 53-year-old retired engineer, threw a brick at the dog while his wife rushed their grandchildren into the house. She returned outside with a .38-caliber revolver, finding her husband holding the barking puppy with both hands.

The grandmother fired two shots — the first striking her husband in the upper right chest, the second hitting the dog’s left front leg, the paper said.

Robert Walker Jr. heard the shots and ran outside. He reportedly found his mother screaming, “I shot your daddy! I shot your daddy!” The son then backed his pickup truck into the yard, lifting his father onto the tailgate while waiting for the police and an ambulance to arrive.

Walker was pronounced dead at a hospital around 5:00pm.

“It was a freak accident,” his son said. “I don’t know what else to say.”

A spokeswoman for the Jackson Police said that the shooting was under investigation. It was not clear whether Betty Walker would face criminal charges.

The injured dog was taken in by animal control officers and its owner, Lazarius Montgomery, could also face charges. Montgomery claimed he was asleep when the incident occurred.

The Walkers were married for 32 years. They had four children together.

“My mom loved my dad,” Walker, Jr. said “They traveled the world together.”

“She said, ‘Please forgive me. I killed your daddy.’ We told her she was only trying to protect him.”

Story by Elaine Furst for Dog Files