Roger Bergendorff, the slot machine artist who fell into a coma possibly from the poison ricin that he allegedly made, was arrested Wednesday for possession and suspicion to poison others. He's also charged with possession of unregistered firearms - two .25-calibor pistols, a Ruger rifle, and a Browning pistol with silencer.

FBI officials suspect Bergendorff began making ricin from castor bean seeds 10 years ago. Falling ill ostensibly from pneumonia and kidney failure (no traces of ricin were found in his body, though the toxin would have broke down completely) on Feb. 14 in his extended stay motel in Las Vegas. Ricin was found in his motel room, along with a copy of the Anarchist's Cookbook, firearms, and instructions on how to make various poisons, including ricin.

He awoke a month later and has since been questioned and investigated by authorities.

Charges include up to a $750,000 fine and 30 years in federal prison.