Al Waheed was involved as he owned the 5* floors above in that hotel with a private helicopter entrance. Plenty of time to stock up, bring shooters, and lay the blame on some random. I wouldn't be surprised if there was a gun show and that's why there's footage of Paddock bringing up suitcases of guns and enjoy las vegas until then. It makes no sense on why he had so many guns. Did they ever release footage of his floor when Paddock was raided? Or did they just show us lobby footage for the news.