Johnson said the company is not suspected of any wrongdoing in connection with the attack, but says it may have useful information to better identify and address homegrown extremism. Ron Johnson of Wisconsin says in a letter to G4S Secure Solutions that he wants to learn more about Mateen's job responsibilities, security reviews and reported concerns raised by co-workers related to his behavior and possible connections to terrorism. Senate Homeland Security Committee is seeking information from the Florida security company that employed Omar Mateen, the Orlando nightclub gunman. Sunday's shooting at the gay dance club ended when police killed gunman Omar Mateen. It will open Wednesday at Camping World Stadium. Dyer says officials are in the process of putting together an Orlando Family Assistance Center.
