ATLANTA — The mother of the man accused of shooting five people in midtown Atlanta said he was angry doctors wouldn’t give him Ativan, an anti-anxiety drug.

Deion Patterson, 24, is accused of opening fire in the waiting room of a Northside Hospital medical office, killing one woman and wounding four others.

Patterson’s mother said doctors would not give her son the tranquilizer, which treats anxiety but can also be addictive.

He was a Coast Guardsman but had been discharged in January. It’s unclear why he was released.

Police said he was only in the medical office for two minutes before he opened fire.

After hiding in a pool house at a Cobb County apartment complex, Patterson was arrested hours later. The video shows him surrender to officers before being handcuffed.

Surveillance video from nearby businesses showed Patterson running from the medical office.

Police said Patterson ran from the medical office after the shooting and stole a truck that was running and empty at a nearby Shell station.

The woman who was killed has been identified as 39-year-old Amy St. Pierre, employed at the U.S. Centers for Disease Prevention and Control.

The other four victims, three of whom remain in critical condition, have not been identified.

Patterson has been charged with one count of murder and four counts of aggravated assault.

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