Two Iowa men suspected of planning a mass shooting last month at the Pokemon World Championships in Boston will be held without bail for the next four months.

Suffolk County Assistant District Attorney Joseph Janezic argued today in a dangerousness hearing that Kevin Norton, 18, and James Stumbo, 27, weren't mere " keyboard commandos," but instead possessed the capabilities to carry out their alleged online threats.

According to The Boston Globe, the prosecutor was able to sway Judge Thomas C. Horgan, who determined the defendants are too dangerous to be free while they await trial.

Norton and Stumbo, who were invited to participate in the Pokemon World Championships, were arrested Aug. 22 on firearms charges after police were alerted to alleged threats they’d made to the event through social media.

After both men were barred from entering the Hynes Convention Center on Aug. 20, police obtained a search warrant for Norton’s 2002 Chevy Prizm and discovered a 12-gauge Remington shotgun, a DPM5 Model AR-15 rifle, hundreds of rounds of ammunition and a hunting knife.

Norton and Stumbo's attorneys insisted their clients, who don't possess criminal records, never intended to carry out their threats. Steven Goldwyn, who represents Norton, pointed out that neither man was armed when they were stopped from entering the convention center.

“If they really had the true intent to do anything about it, why leave [the weapons] in the car?” he said. “It’s absolutely possible, but it’s mere speculation that this vague bravado talk on Facebook was going to be carried out.”

Norton and Stumbo face charges of unlawful possession of a firearm, unlawful possession of ammunition and unlawful possession of a large capacity rifle.