Eh. When DeMeo ordered a hit, he really meant "back me up when I kill him". Riina is a sociopath if you ask me. Complete disregard for the lives of others, cares more about getting ahead than avenging minor insults. Reason I suggested William Daddano Sr is only because he's constantly likened to a made Mad Sam, even if there isn't much information on his personalit. Still, it's a suggestion I'm not even sure about.