it will be one of the steps that i'm sure investigators are taking. they want to determine whether cash was used. if cash was used, they want to determine whether somebody was helping to funnel the cash to them and in what form. for example, they might have used money remitters, which is not a known common way of getting money to people. the famous -- an informal banking system. those are things that need to be determined. those are the kinds of things that will lead investigators to know exactly how these weapons were purchased and how were there cash or some sort of financial instrument. >> as you mentioned, you do a lot of this forensic work. so you liken it to putting a puzzle together. you want to start with those weapons. why starting with the weapons? do you think that will unraffle the case? >> you want to see whether they were purchased over time, how they were purchased. the how is part of the puzzle that leads you to know whether