For me both are to blame for the murder about equally. I believe that in most Western countries the punishment for the mercenary (btw it's an assassin, mercenar

For me both are to blame for the murder about equally. I believe that in most Western countries the punishment for the mercenary (btw it's an assassin, mercenaries can do legitimate work like providing security in war zones) would be slightly worse. But I'm not 100% sure about the last point, never had to deal with assassinations so I never felt the need to research it.