This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.TRUMANN, Ark. — An Arkansas man has pleaded guilty to first-degree murder for fatally shooting a man who tried to intervene as he held his ex-wife at gunpoint outside a Walmart. The Craighead County Prosecutor’s Office said Monday that 23-year-old Gabriel Urrabazo was sentenced to 30 years in prison for the April 2018 death of Richard Highfill, plus 20 years behind bars for the kidnapping of 21-year-old Faith Morgan. He will serve the sentences concurrently. Officials say Urrabazo went to the Walmart in Trumann, about 120 miles (195 kilometers) northeast of Little Rock, and held Morgan at gunpoint . As police negotiated with Urrabazo, Highfill tried to disarm him but was shot and killed. Highfill was Morgan’s uncle. Urrabazo released Morgan and surrendered after an hour long standoff with police. A public defender for Urrabazo could not be reached for comment.