Daughters — Nathan Walpow

He looks for crimes that fall through the cracks, criminals who do horrible things to those who can't defend themselves and get away with it. His ex-wife was murdered years ago, but until a mysterious young woman magically appears at his apartment, he had no reason to find out who did it or why. Soon the two of them are traveling up and down the length of California in order to bring a killer - and maybe a couple of others who deserve it - to justice.

This short story features an early version of the character who became Logan, the urban vigilante antihero of "Logan's Young Guns."

"This guy is a hell of a writer" - Lee Child