I'm looking for the title and anthology/source of a short story published at least 20 years ago, probably even further in the past.
My memory says the title was "He Who Cried", but I can't find any reference to that exact title.
Plot outline (hazy in most parts): Man gets captured by hostile aliens. He's in a room with several aliens and they decide to kill him. As they advance to do the deed, the man bursts into tears and starts pleading with them. To his surprise, they drop dead.
Some time later, another alien comes into his cell to kill him, and again he bursts into tears and again the alien drops dead. The man realizes that somehow his tears are lethal to these aliens.
So the next time an alien (who is a heroic volunteer in the aliens' eyes) comes into his cell, the man confidently waits for his tears to kill the alien. The problem is, he's not afraid any longer, so the tears do not manifest, and the alien is able to kill the man. The alien exits the cell and receives the accolades of his people.