03/18/2010 05:12 am ET Updated May 25, 2011

Military trying to find motive behind Fort Hood shooting rampage that killed 13, wounded 30

FORT HOOD, Texas (AP) — Military officials were starting Friday to piece together what may have pushed an Army psychiatrist trained to help soldiers in distress to turn on his comrades in a shooting rampage that killed 13 people and wounded 30 in Texas.

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