aburtang
…wikipedia.org/…/Murders_of_Haile_Kifer_and_Nicho…
TLDR: man lures teens into his home by leaving his house wide open so he could shoot and kill them.
The absolute sicko made audio recordings where he floated about killing them.
WeirdGoesProThis case is horrible, but you have misrepresented it in your comments. The teens broke a window and entered his house with the intention to rob it—it was not left wide open. The recording devices were turned on because he knew they were robbing the house. His first shots to stop the intruders were legal.
Where the crime occurred is that the original shots did not kill them, and then he executed them after they were downed. He also did not report the bodies for a day.
Don’t get me wrong, dude is a psychopathic asshole, but misrepresenting the series of events doesn’t help anybody.
With the premise the OP presented, I expected something worse than what was actually there. It was still horrible, but the impact was lessened for the reasons you listed.
Interesting how someone can manufacture consent like that by shifting your initial view.