spontaneous, even though he was at that party initially. >> andrew reported to us earlier that at least two of the weapons that the authorities recovered were legally purchased but in the press conference tonight, the chief wasn't willing to say anything about the origin of the four weapons. >> reporter: we know it's a .223-caliber assault rifle and two semi-automatic handguns. two of the serial numbers have been traced to one of the suspects. they're still working to trace the other two serial numbers. i think that's why they're being reluctant to give information on that. the atf is still working that angle of the case. >> we're being joined by morgan radford, at the hospital in san bernardino. morgan, how many patients are at the hospital where you are tonigh >> reporter: lawrence, there are currently 5 of the 17 who were injured at the hospital behind me. two are in critical condition,