what expanded the casualty number? number of evidence when we took down the case there was a bunch of search warrants. >> brian: you there were for a while, right? >> yes. we were there over a week, a couple of weeks. so we obtained a whole bunch of information. we looked at that information. we followed it. there was d.n.a. evidence linking him to the commission of these two crimes and then we found other, such as the planning document. ainsley: what does the planning document say? >> the planning document, you know, we allege, basically sets forth his motivations his meticulous planning and clear intent. >> ainsley: this was in his computer it? >> was in his hard laptop and it had been erased and we were able to retrieve it with forensic tools. >> steve: what is interesting is after he would murder somebody he would go in make notes about what he did and things like that. it sounds like from what we were just talking about in the break,