(Omaha, NE) -- New charges are being filed against the man accused of conducting a frightening shooter drill in Omaha. Authorities say John Channels entered the Catholic Charities near 92nd and Bedford on May 19th and fired blanks from a handgun, causing people to panic. He was charged with making terroristic threats, but his defense attorney says the drill was planned in conjunction with Catholic Charities leaders. The Omaha World-Herald reports Douglas County prosecutors have added a child sexual assault case, with 22 more charges, against Channels. The Air Force security officer at Offutt Air Base was the underage victim's Taekwondo instructor. The 27-year-old could spend the rest of his life in prison if convicted in the two separate cases.