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Gunman Apparently Joked About 9/11 as a Teenager

BALTIMORE, Md (AP)-- A man who knew the Orlando nightclub shooter as a teenager says the student infuriated his peers by joking about the Sept. 11, 2001, attacks.

Robert Zirkle says he and Omar Marteen lived in Stuart, Florida, and rode the same bus, though they attended different schools.

Zirkle says he and his friends were generally on good terms with Mateen until 9/11. Zirkle says Mateen made airplane and explosion sounds and appeared to be joking about the attacks.

Zirkle says, "My group of friends told him it wasn't a joke, and if he didn't knock it off he was going to have problems."

Zirkle is now 29 and lives in Johnson City, Tennessee. He says he would see Mateen when both teens worked at the mall but didn't have much contact after those jobs.

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