Rick Reese, owner of New Deal Shooting Sports, testified Monday that the man was boisterous and bragging all the time, so he didn't believe anything he said.
Reese, his wife, Terri, and their sons, Ryin and Remington, are on trial on charges that they sold assault rifles and ammunition to the informant and undercover federal agents.
The informant, Jose Roman, testified against the Reeses last week. Roman implicated the family after he was arrested in January 2011 on marijuana distribution charges.