Jane should look at easier ways to kill others.
On a side note if you really want to turn friends into enemies look at the board game Secret Hitler. Just don't play it with family or really close friends. Better to have a copy of Cards Against Humanity for them.
Saw one like this on a stream. One imposter killed a guy right when another one locked the door to that room so he was stuck. Four people opened the door to see him standing over the body.
mandemon ,yh ... I remember this game called velvet sundown,while concept was good it became pretty obvious three outta 3 were communicating together outside of game to vote always 4th out, no matter what