The causal account of liability is most closely associated with Judith Jarvis Thomson. It holds that there is a single explanation of the permissibility of harming both culpable threateners, such as Attacker, and innocent threateners, such as Falling Person—namely, that each will violate Victim’s right not to be harmed unless Victim harms them (Thomson 1991). While most people grant that Attacker threatens to violate Victim’s right, the claim that Falling Person also threatens to violate Victim’s right is controversial.