Nodiff said 30-year-old Cory Harley was being held on $500,000 bail on seven offenses related to the Nov. 11 robbery, including aggravated assault. "We are elated that this vicious predator is off the street," Nodiff said. He said Harley used a "surgically sharp knife." Harley led police to the knife, which was in a sewer, Nodiff said.