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What we know about the suspected gunman in California mass shooting
Catch up with NBC News Clone on today's hot topic: Mmvo44115013526 - Breaking News | NBC News Clone. Our editorial team reformatted this story for clarity and speed.
Ian Long served five years in the Marine Corps, spending time in Afghanistan before he was discharged as a corporal in 2013. Authorities say he may have suffered from post-traumatic stress disorder.
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