WICHITA, Kan. (AP) — An unsealed document charges a Topeka man with conspiracy in a plot to bomb the Fort Riley military base.

The court document unsealed Tuesday charges Alexander Blair with conspiring with John T. Booker, Jr., in the planned attack. Previously Blair had only been charged with failing to tell authorities about the plans.

The more serious conspiracy charge comes in the newly unsealed criminal information. Such documents are filed with the consent of the defendant and typically signal a plea deal is in the works. The document had been under seal since April 23.

It accuses Blair of giving Booker money on March 17 to rent a storage unit in Topeka to store components he believed would be used to build an explosive device for the attack at Fort Riley.