WICHITA, Kan. (AP) — Attorneys for a man accused of plotting a suicide bomb attack at a Wichita airport claim the undercover government agent who befriended him radicalized him to induce him to commit the crimes.

The legal maneuvers Monday come in the case of Terry Loewen, a former avionics technician who was arrested in an undercover sting when he allegedly tried in December 2013 to bring a van filled with inert explosives onto the tarmac at Mid-Continent Airport.

His attorneys argued their client was entrapped. They also asked the court to suppress evidence seized from the van.

Loewen has pleaded not guilty to attempting to use a weapon of mass destruction and related charges.

The U.S. attorney’s office says it will review the defense filings and respond to the court.