I don’t think Kenzie was murdered because she had any incriminating information on this guy.
I think she was murdered because she told him no, or because he planned for it all along.
That is possible of course and very likely what happened. At the same time I just can't get it out of my mind that she met with him at the park that night directly after landing so I say to myself: "What would have prompted that". So let's think about this logically using our own life experience and h0w things are often done:
1) If she rejected him then why would she then later agree to meet with him at a park and especially so after a flight late at night when she would have likely been tired? I think we may eliminate this potential because on its face it just doesn't make much sense if a rejection took place. Most girls after rejecting someone would not be willing to meet with them in such a manner, they just ignore the calls/ignore the person until they think they will get the picture.
2) She saw something, heard something, or knew something which took place before her trip to CA and during the trip he was attempting to convince her it wasn't what she thought leading him to invite her to the park the "moment you land" because it is "so OMG important, PLEASE PLEASE PLEASE let me explain this to you". She was both curious about learning more about whatever it was and also felt obligated to at least hear him out since he never showed any ruthless tendencies toward her before hand. Thus she fell right into his trap and upon arriving he captured her.
3) She made a preplanned agreement with him for some type of experience (sexual, pictures, discussing a future date, etc) during her travel period in which he likely sought out her profile, targeted her as a person he wanted/fit his fantasy mold, and the "meeting" in her mind was based on business but in his mind was a setup to lure her into his trap. This is the most highly plausible at this point in my mind given that the PD explained they had digital evidence showing communication which leads me to believe there is a high propensity that this was the lure, a business arrangement of some sort.
4) They were dating or "together" or somehow business connected on the side and he acted as a would be (excuse me if this offends anyone) "pimp" who convinced her he would keep her safe during her appointments. Or he was attempting to set this up while claiming he was wealthy, had a huge list of clients from his fraud modeling connections, and he convinced her that knowing him would bring her a lot of wealth, connections, and potentially the ability to meet Mr. Right which, honestly, is very often on a girls mind of her age range. This lure then got her into position and the rest happened.
I see three of those being plausible. <modsnip: removed content based on rumor / non MSM source>