much fast er. why was he able to do that? to do any of this? we're also learning more this morning about his deadly intentions. planning well before the event. he rented a condo across from another music festival in las vegas the week before this massacre. it was a larger concert, his initial target? all this as his girlfriend insists she didn't know anything about his meticulous long-range plan. we have it all covered. let's begin with jean casarez in las vegas. certainly a tone of skepticism, because as you and i know from doing this, it is rare that nobody knew anything if any were close to the killer. >>reporter: that's exactly right. authorities released so much information last night, chris, and they say they are looking at facts. facts that will lead them to the truth.