DECATUR, Ga. (AP) -- The brother of the 20-year-old man who police say went to an Atlanta-area school heavily armed and exchanged gunfire with officers before surrendering says he was a normal kid growing up, but began to change as a teenager and engage in threatening behavior.
Tim Hill told CNN's Piers Morgan that Michael Brandon Hill began acting erratically after doctors adjusted his medications and he was institutionalized on several occasions.
The older brother's comments came two days after a school bookkeeper helped persuade Michael Hill to surrender to police following a frightening standoff and shooting Tuesday at Ronald E. McNair Discovery Learning Academy in Decatur, an Atlanta suburb.
No one was hurt, though police say Hill went to the school armed with an AK 47-style rifle and nearly 500 rounds of ammunition.
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