User blog comment:Enraptured Misfit/The 377th Annual Hunger Games/@comment-5459309-20160115174920/@comment-5459309-20160116174805

How do we know the killer left the scene? But if they did, that would limit the pool of suspects immensely, as it would mean that the other Careers didn't do it. The Anti-Careers had already fled, so did Alkaline's alliance and majority of the loners. I don't know who'd still be left at that point.

Personally, my guess right now is Elise. Pompeii noted that she was just sitting around watching others, giving her the chance to see when he was distracted, and it would line up for her character to want Pompeii dead.