Law enforcement officials investigating the disappearance of Madelina Cojocari, an 11-year-old girl who was reported missing on Dec. 15, searched a lake in her North Carolina town on Monday, the FBI and local police said. Cojocari has been missing since Nov. 23, but her disappearance wasn’t reported to her school’s resource officer until Dec. 15, according to the Cornelius Police Department. An undated photo of missing 11-year-old Madalina Cojocari released by the Cornelius Police Department.