Entitlement and Apathy based Ignorance
Has killed someone, in NYC of all places.
Yea, I'm being harsh but I've taken CPR/First Aid courses since I was a a teenager.
Plus three decades of reminders that said:
"Hey this isn't about you asshole. Do the right thing, save a fucking life!"
So, yea, that's why no one knew: they never gave that information any value to them
Even if you had a hunch by Clue Three and would have acted, it's better than the best of this crew.