MINNEAPOLIS -- A Minnesota National Guard member and self-proclaimed commander of a militia group will remain behind bars as his case goes to a grand jury.

Keith Novak is accused of stealing classified documents from his former battalion containing the names, birthdates and social security numbers of nearly 400 members.

In March of 2013 Novak told undercover FBI agents that he took the information while he was on active duty with the 82nd Airborne Division in Fort Bragg, North Carolina, according to a criminal complaint. Novak showed the agents the document and told them if they "ever wanted to disappear and become someone else" the list had a "battalion's worth of people" whose identify they could steal.

The 25-year-old also stated that he wanted to use the information to help cover up the identities of people in his militia. In the fall conversations about turning the data into money started getting serious. Agents paid Novak $2,000 for 44 names, according to the complaint.

The complaint paints the former intelligence analyst as an armed and dangerous man. FBI special agent Christopher Crowe testified during a preliminary hearing Monday that Novak bragged about having a cache of weapons and talked openly about an escape plan he had in place at his apartment in case authorities came for him. The agent also testified that Novak told the undercover agents millionaire Warren Buffett was on his "target list."

Beverly Ferguson told KARE 11 this is not the Novak she knew. Ferguson is the caretaker of the Maplewood apartment Novak lived in.

"Everybody in the building…they knew him. They liked him. He was just a really nice kid. Always offered to do anything for you," Ferguson said.

No court date has been set yet. Novak's father was in the courtroom and had no comment.