A suspect in a shooting at a Dallas high school that wounded four students and drew a heavy police response to the campus has been taken into custody, school district officials announced Tuesday night.

The student accused of injuring four in a shooting at a Dallas high school was let into the building through an unsecured door and then walked down a hallway toward a group of students, opening fire on them and then appearing to take a point-blank shot at one,

Hours after the shooting, a 17-year-old suspect turned himself in at the Lew Sterrett Justice Center in Dallas and was booked into Dallas County jail at 9:32 p.m., online records show. The teen was being held on an aggravated assault mass shooting charge with a $600,000 bond, according to records.