After the war he went into business building homes for returning veterans.

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Around nine hours after being admitted, he went into a smoking yard at the back of the building and climbed over an eight-feet high gate.

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Laden with weapons and ammunition, Lanza then went to the elementary school, shooting his way into the building where he killed the 26 victims with a Bushmaster .223 caliber model XM15 rifle, according to Sedensky.

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