LINCOLN -- Lincoln Police officers are investigating drug sale gone wrong early this morning. Officer Katie Flood said the victim, a 20-year-old woman, admitted she was meeting 29-year-old Tung Doan to sell him marijuana around 2:30 A-M. When she arrived at 26th and L Street, Doan and a man she did not know got into her vehicle. The unknown man pointed a gun at her while Doan grabbed her around the neck. The victim then accelerated, hit a parked truck and flipped the car. After the crash, both the woman and Doan got out of the vehicle and continued to fight in a nearby yard. Both men left the scene by the time police arrived, but were found by police and tracking dogs under a parked car. Tung is facing attempted robbery charges and his 17-year-old accomplice was taken to the Youth Detention Center for the same charge. Police had not yet located the gun or marijuana.