Investigation is going on probing the deadly shooting outside Buford’s beer garden in Downtown Austin’s Sixth Street, that left 3 dead and 14 injured. 

Police said officers were responding to reports of gunfire around 1:40 a.m., before confronting the suspect and fatally shooting him after he opened fire.

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The Department of Homeland Security identified the terrorist as 53-year-old Ndiaga Diagne, a naturalized U.S. citizen born in Senegal who lived in Pflugerville, a suburb north of Austin.

FOX News reported Sunday that it had obtained a photo of the suspect taken before the shooting. The image showed a man holding a firearm and wearing a gray sweatshirt bearing the words "Property of Allah." Uncorfimed reports claims, that man had a Koran in his vehicle

Sources also told the network the suspect was wearing an undershirt that appeared to display an Iranian flag or Iranian imagery.