Testimony Thursday focused on wired informants and undercover officers who tried to infiltrate card games and place Fuller in the mix.
Prosecutors contend that Corey Fuller not only knew about thousand-dollar card games at his house, but often participated in them and took a cut of the money.
Matthew Smith, prosecutor, says, "He was standing over the table like a pit boss. Everyone was gambling. In fact, he was inquiring, where was his money?"
Fuller faces felony gambling and firearms charges in the wake of a raid in April, a raid which agents testified followed three months of surveillance and the repeated use of a confidential informant.
Tim Jansen, Fuller's attorney, says, "The evidence will show that the reason we're here is not because of what Mr. Fuller did, but who Mr. Fuller is."
Fuller's lawyer tried to poke holes in the case, suggesting Fuller's roommate may have hosted the card games and pointing out a wired informant couldn't prove Fuller was there.
But late in the day an undercover FDLE agent took the stand and told the jury about a day he played 10 hands with pots up to $1,000, and the money, he says, was put in a shoe box and handed to Corey Fuller.
"The person who took the shoe box? Yes. Corey Fuller. He's sitting there with a dark suit, a blue shirt and a blue necktie," the agent says.
Fuller faces two felonies for running a gambling house and use of firearm in the commission of that felony. He also faces a misdemeanor gambling count.
Testimony is scheduled to continue Friday.