FARMINGTON — A federal jury found a Shiprock man guilty of involuntary manslaughter, assault and a weapons charges in connection to a July 2010 shooting that left one man dead and two others injured.

Clay O'Brien Mann, 28, was found guilty after a five-day trial in Albuquerque that concluded Friday afternoon.

The jury found Mann not guilty of first-degree murder in connection to Ames Jim's death, but Mann is facing up to 63 years in prison for his five convictions during his sentencing hearing, U.S. Attorney Kenneth Gonzales announced in a prepared statement on Friday afternoon. Mann was convicted of involuntary manslaughter, two counts of assault resulting in serious bodily injury and two counts of discharging a firearm in furtherance of an act of violence.

On July 24, 2010, Mann was drinking alcohol and shooting fireworks at his home near U.S. Highway 491 in Shiprock, according to court documents.

About 10 people were at the home of Mann's neighbor, Glen Nez, and they heard the fireworks explode near them. Jim, Mark Bolding and Paula Nez approached Mann, according to the documents.

Mann later told FBI investigators he first fired a warning shot at Jim. When Jim didn't stop Mann said he "centered" the aim of his .22 caliber rifle on Jim and shot him in the chest and face. Jim died at the scene of the shooting.

Mann also shot Bolding and Paula Nez. They each were treated for serious injuries and survived, according to court documents.

Mann was found sleeping in his car with his rifle a mile away from the shooting.

Mann has been incarcerated since his arrest on the day of the shooting. His case was delayed because of competency proceedings.

Ryan Boetel covers crime for The Daily Times. He can be reached at 505-564-4644 and rboetel@daily-times.com. Follow him on Twitter @rboetel on Twitter.