[ She's curious about the timing as well, especially because two dead bodies implies there was time to kill between or two murderers were at play. Elizabeth's thinking - recalling what was said about the six people other than the staff. Oh, sorry, she totally remembers vividly the night she had to kill Luke. ]

Bigby said that someone sent that man into the room. Perhaps there two isolated incidents and one of those six Judy mentioned isn't... working for the staff, but not necessarily working for us either? We need to start asking questions about why someone would send Kei off to his own, highly armed and ready to kill. That is, unless he was staff himself.