Two people are in custody after four teens were shot at the Music City Central bus station in downtown Nashville on Monday. Police said 18-year-old Javious Chatman was critically wounded while two 16-year-olds, Nathaniel Webb and Jonathan Stoner, and 17-year-old Jalen Jeffries suffered minor injuries. Authorities are investigating the incident, but said the shooting doesn't appear to be random. Two 17-year-old boys were taken into custody after they were seen on surveillance footage riding up and down escalators, appearing to look for someone. Police also recovered a weapon at the scene, but have not confirmed if it was the gun used in the shooting. Metro police spokesman Don Aaron said a window washer led police to the two suspects. The window washer reportedly saw them run from the station after shots rang out.