Thank you for your question. I'm happy to answer questions about my perspective as a Mormon, with the understanding that I don't speak for all Mormons, or officially as a mouthpiece of the church. I don't think the manner of Travis' death would alter his experience in the afterlife. Are you referring to the fact that he was killed right after what the church would call a trangression without being able to repent from it first?
I can't sufficiently answer your first question about kingdoms etc., because although I know a lot about this case, (because I have a bit of a "problem" according to my husband. What can I say? I love a good prosecutor- my husband is also one and I LOVE watching him in court too!) I don't know everything about Travis, his actions, his thoughts, his heart, etc. and am certainly not in a position to judge someone else on earth let alone about heaven. That job is WAY above my pay grade. With that said, there is scriptural reference in the Bible to sexual sin being forgiven without an official repentance process taking place when Jesus stopped the stoning of an adulteress and told her to go and sin no more. Like I said before. Jesus is merciful and kind. I don't think Travis' behavior would exclude him from great happiness and peace in heaven. The particulars of that, however I'm sorry to say, I'm not privy to.