An argument over a juvenile taking cellphone pictures in a hotel at the Chiller Theatre Expo in Morris County on Sunday triggered a chain of events that ended with a security officer stabbed and one man under arrest, according to police. David C. Knestrick, 47, of Connecticut, is charged with second-degree aggravated assault and weapons offenses. He was held Monday for a psychiatric evaluation at Saint Clare’s Denville Hospital, according to an affidavit of probable cause. Chiller Theatre is held twice a year at the Hilton Parsippany and features an array of celebrity guests signing autographs…
