Quote1 Those accidents are adding up, Thomas! And it's hard to deny the pattern as anything but you surgical fetish, you idiot. Quote2
-- Martha Wayne src

Thomas Wayne, Sr. was the father of Thomas Wayne, Jr. and Bruce Wayne. Thomas Sr., unlike his wife Martha, was a very nervous man.

Tired of his mother's evil nature and his father's incompetence, Junior conspired with his brother Bruce to kill their parents in an alleyway. Junior, pointing the gun he obtained at his parents, blames them for wasting all of the money that was supposed to go to the children.

The plan goes awry, though, when Bruce backs out and begs his older brother not to kill their parents. The two children get in a scuffle with Junior dropping his weapon. All the while Martha continues to scream at her children, threatening to lash them when they are done. Thomas Sr. fails to notice their butler Alfred Pennyworth enter the alley, pull his own gun on them, and kill both the parents, on Junior's orders of course.