Oh, wow, first actual fucking dead in game huh?
That's one way to raise the stakes for the final game.
It also means, unless there are some very whacky shenanigans going on, friendship game has official passed moral horizon. All these crazy adminstrators with their quirky antics? You are all murderers and I hope you fry.
One easy way to get around the share your password rule is to give multiple people your password. I don't think you need umm "consent" to tell it, so just go to a bunch of people and blurt out numerous different passwords. One is correct of course, but since putting in a false password gives you hefty penalty that info is fairly useless.
Another solution, if your password is an actual word you can sneak it into conversation without them realizing.