The FedEx trap gunman was previously known to local and federal authorities, and a family member in question had alerted police before the deadly attack, according to a report Friday.
The suspect, who committed suicide after killing eight at the Indiana facility Thursday night, has not been publicly identified by police. But CNN journalist Ana Cabrera said she is no stranger to law enforcement.
“Authorities have been warned about the potential for FedEx suspect violence in the past, according to sources,” Cabrera said. he tweeted. “The suspect in the Indianapolis mass shooting was known to federal and local authorities prior to the attack.”
Citing three law enforcement sources, Cabrera added that a relative contacted authorities to warn them of the gunman’s “potential for violence.” It is unclear when the warning was issued.
Indianapolis Metropolitan Police Department deputy director Craig McCartt said earlier in the day that investigators “have an idea” of who the shooter is, but did not want to elaborate.
He said the killer died from a self-inflicted firearm when police shut down.