Orlando shooter Omar Mateen applied to become a police officer last summer in his hometown of Fort Pierce, Florida, but he didn't make it very far, according to a report.
He was rejected after exhibiting bizarre behavior during an interview at the police academy.
"Everything was an argument," the Daily Mail reported, citing a source. He claimed his application was futile. "You won't let me in because I'm a Muslim," he said.
Inside Edition has obtained Mateen's Florida firearm license, which showed he received a perfect score of 100 on exams for three types of handguns.
His strange behavior began in childhood, according to Robert Zirkle, who says he knew Mateen in the fifth grade.
On 9/11, Mateen joked about the attacks, he said, and made "plane noises."