Resort island murder case.

My old puzzle. Just me trying to make a puzzling murder case. Maybe still contain misspelling. I cannot add more details of scenario, as the tokens is way beyond 1600 already, hoping for a free user to jump in. And i probably still messed up at author's note, AI instructions & how it does things. 😭😅 I wish someone enjoy solving this and it's alright to guess differently than my intention, since i make this particularly open 🤫🤭 Any guesses of who's the killer in comment would be really really appreciated. Thanks for anyone who even took a glance at this work 😊