Massacres are individual acts of mass killing of civilians or noncombatants, almost always characterised as having distinct political significance in shaping subsequent events.
Below is a list of incidents that are commonly referred to as massacres, though other incidents may also qualify yet not be called massacres.
... the first openly gay man to run for President in U.S. history. Upon the request of fellow Socialists, McReynolds would run again for President as the SPUSA candidate ...