What is it with coaches named Nolan Richardson?

Nolan Richardson III resigned as men's basketball coach at Tennessee State University on Wednesday night, two weeks after he was indefinitely suspended for bringing a gun into the school's arena.

Richardson, 38, got into an argument with assistant coach Hosea Lewis on Christmas night concerning the time of practice after only four players showed up. Richardson admitted to campus police that he then went to his car and brought a handgun into the Gentry Center, the school's gym.

Assistant coach Christopher Graves said in a written statement to police that Richardson asked where Lewis was because he "had something for him."

Richardson, who told police the gun wasn't loaded, was suspended Dec. 26.

School officials said they will not pursue charges against Richardson for bringing the gun on campus.