The two people killed in a plane crash near Trenton were a father and son. As of yesterday, the Grundy County Sheriff’s Office had not released the identity of the two people who were on board a small Cessna aircraft that went down east of Trenton. Officials said in a news release that the Cessna departed from Humphreys and was heading to Kirksville when it crashed. The search for the plane began Monday night. The wreckage of the aircraft was found Tuesday afernoon.