Roel van der Hoorn
Only one indeed. From the living rules:
Player Assassination. If they have any “Assassination” cards (i.e. any Black Card labeled “Assassination”) in their hand, they may play one to assassinate any flipped Hacendado (even your own, simulating parricide). This flips your victim’s card permanently back to its “Loyalist” side (representing his son or heir). He gets the Assassination as a Victim-Award. A Player Assassination costs 3 gold, plus 3 gold for each troop in the victim's Private Army.