He says employees at contractor noted behavior that raised concerns . The report by the Navy said had it happened , the government would have security clearances . CNN 's Evan Perez contributed to this report . Alexis had shot and killed 12 people last year before being killed by police .
He says employees at contractor noted behavior that raised concerns . The report by the Navy said had it happened , the government would have security clearances . Alexis had shot and killed 12 people last year before being killed by police .