HOUSTON – A federal agent is under investigation after he allegedly assaulted a man at a high school football game, then pulled his gun on a crowd that gathered during the melee. Bureau of Alcohol Tobacco and Firearms special agent Marc Delpit, father of a St. Thomas High School football player, allegedly got into an argument with a fellow team father during half-time in a recent game against Angleton High School. Several witnesses allege Delpit punched the man to the ground and continued to assault him as bystanders gathered and attempted to intervene, KHOU reports. The special agent told police...