Student accused in Dallas school shooting walked toward group in hall and opened fire, injuring 4

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, according to an arrest warrant released Wednesday.

The 17-year-old suspect was being held in Dallas County jail on Wednesday on a charge of aggravated assault mass shooting. He was taken into custody several hours after the shooting, which happened just after 1 p.m. on Tuesday at Wilmer-Hutchins High School.

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At the same school last April, one student shot another in the leg.