we are bringing back darren porcher former law enforcement lieutenant.re. we have information but we don't have a lot. knowing you what know now what can you tell us about where you think things are in the investigation? >> thanks for having me. i actually think we have a lot considering we have a weapon in possession of law enforcement because what that now allows officers to do is assess the serial number in that partnership between local law enforcement and federal law enforcement such as atf would be paramount in a situation like this because we can conduct a gun trace on the weapon n. addition to that we can sweep the weapon for dna evidence such a fingerprints so we can put that in the dna database to see if we establish a hit so we have a credible lead in terms who the suspect is. because generally when we have mass shooters they don't go far on the lam before they're captured and taken in custody. >> darren you heard police say there was a rifle them. could not comment on the type of magazine or the number of weapons that the suspect had. is that