The Travis County Medical Examiner has identified Colton Tooley, 19, as the student who killed himself earlier today (Sept. 28) on the campus of The University of Texas at Austin.

Tooley, a sophomore mathematics major from Austin, began firing an AK-47 assault rifle near the Littlefield Fountain at about 8:10 a.m. Officers from the University of Texas Police Department and the Austin Police Department responded to the report and pursued Tooley, who went into the Perry-Castañeda Library. Emergency procedures were implemented. The building was evacuated, text messages were sent to the university community and the outdoor siren and loudspeaker system was activated.