Lizzy wrote yesterday:
Afterward, Ellina couldn't be the witch because Locken blocked her on the night of the poisoning.
I had to look at the profiles, at least out of curiosity; today's clue is associated with the Olympic symbol - five rings, exactly those colors.
http://ru.wikipedia.org/wiki/%D0%9E%D0%BB%D0%B8%D0%BC%D0%BF%D0%B8%D0%B9%D1%81%D0%BA%D0%B8%D0%B9_%D1%84%D0%BB%D0%B0%D0%B3
Hommy's profile says his country is Hyperborea. Hyperborea is a legendary country in ancient Greek mythology. Along with the Olympic flag (rings), there is another symbol of the Olympics - the Olympic branch.
"It was the Hyperboreans who recommended that the Greeks reward the winners of the Olympic Games with an olive branch instead of an apple branch and gave them the sacred olive tree..."
That is, the clue connects 2 Olympic symbols.
Regarding Hommy being a Ghoul.
The Ghoul retains its role. "Eternal Curse" - with a 50% probability, its special ability does not activate.
I don't see anyone else who would be more suitable for this role than Hommy, therefore
Execute Hommy