The father of Oxford High School shooter Ethan Crumbley faces four counts of involuntary manslaughter, the same charge on which his wife, Jennifer, was convicted.
Mesquite police rushed to the public charter school on February 19 after an assistant principal called 911 reporting an armed student was holed in an office.
The Uvalde City Council's report, completed nearly two years after the shooting at Robb Elementary School in Texas, cleared several city police officers of wrongdoing.
Crumbley, 47, was charged with four counts of involuntary manslaughter in connection with the 2021 mass shooting at Oxford High School committed by his son, Ethan.
A deputy was shot in the leg, another suffered a head injury, and two had injuries to their hands, officials said. The deputy with a head injury was stable in critical condition.