When a teenager throws the party of the year, no one expects the host to be arrested for murder. And they definitely didn't expect to find out they were partying at the scene of a double homicide.    Sources: Rich, Nathaniel. “Tyler Hadley’S Killer Party.” Rolling Stone, 19 Feb. 2024, www.rollingstone.com/culture/culture-news/tyler-hadleys-killer-party-54270.   Carlton, Genevieve. “Tyler Hadley Killed His Parents — Then Threw a House Party.” All That’s Interesting, 27 Jan. 2022, allthatsinteresting.com/tyler-hadley.   https://en.wikipedia.org/wiki/Murders_of_Blake_and_Mary-Jo_Hadley   ABC News. “Best Friend ‘Ruined My Life’ When He Killed His Own Parents.” ABC News, 7 Apr. 2014, abcnews.go.com/US/best-friend-ruined-life-killed-parents/story?id=23189582.   WPTV News - FL Palm Beaches and Treasure Coast. “Family Reacts to Tyler Hadley Apology.” YouTube, 8 Oct. 2018, www.youtube.com/watch?v=baHlk1hinGA.    “Tyler Hadley’s Friend Speaks Out, Witnessed Bodies at Party.” YouTube, 19 July 2011, www.youtube.com/watch?v=gS7hjxjIH7s.