CHICAGO (AP) — Every time there's a mass shooting, Adrian Littlefield relives the one that nearly killed him half a century ago when a sniper perched high in a tower fired down on a Texas college campus. There have been dozens of rampages since then, each one a reminder of how his life was forever changed by a stranger hell-bent on mayhem.

"I still get frightened when those things happen," said Littlefield, now a 70-year-old preacher living in East Texas. "It stirs something inside me, a hurt that just never goes away."

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