CNN Erin Burnett OutFront July 17, 2015 23:08:00
Reporting, the four guns may have been in his possession for years. thanks to you, drew. there are multiple federal and localsy local agencies involved in the investigation. it's being treated as a formal terrorism investigation. it spans from the united states all the way to multiple countries in the middle east. the hamilton county district attorney is neil pinkston. i appreciate your time. we know this is now a tearer investigation that was announced clearly today. are you at this 100% certain more people weren't involved? >> no. it would be too early in the investigationve stages to determ...