Heiji looked unhappy. "No way to tell, right? Only saw her through that footage. She didn't really say anything to us, just looked terrified. 'Course, it's not hard to see why." And she'd had multiple dealings with Alessa in Jake's blue room

"...I hope she wasn't human. In Hershel's room, I think they ended up electrocuting Alessa. Most people can't deal with that kind of thing too well. Long-term stress, plus the trauma of watchin' that happen."

Or making it happen, as the case might be.