Unfortunately, Deadshot took his introductory label as The Man Who Replaced Batman a little too far when he tried to replace Batman. Naturally, this resulted in Batman and Gordon putting Lawton in a cell, because the world isnt big enough for two rich, high society white dudes who spend their time putting a hurting on criminals who are definitely a lot poorer than they are. Deadshot being from the top of Gothams food chain and progressing to fight crime isnt the only parallel that he has with the Bat. As is normally the case, his initial desire to take on the underworld stemmed from a deeply rooted personal tragedy that shook him to his core and defined him for the rest of his life. A young Floyd Lawton idolized his older brother, Edward, despite growing up within his shadow and never reaching the levels of adoration that his brother received from everyone around him. Things took a turn for the worst when the two brothers decided to save their mother from their abusive father by any means necessary. Edward decided that Floyd should have no part in killing their father and locked Floyd in the shed before confronting his old man. Floyd eventually escapes, takes a rifle and perches on a tree branch. Witnessing Edward about to kill their father, Floyd attempts to shoot the gun out of his hand, knowing that Edward would regret committing patricide. When he takes the shot, the branch beneath him snaps and Floyd accidentally shoots and kills Edward. I bet you wish that last sentence ended with 'Cullen'. His brother was always the hero in everyones eyes and so a grown Lawton adopts the Deadshot moniker, a name for an upstanding citizen if there ever was one, and tries to continue his brothers crusade. When this doesnt work out, he decides to become the villain, returning to Gotham with a much less ridiculous costume (which is saying something) and a lust for revenge against Batman. However, when the time came, Deadshot found that he was either unable or unwilling to take the shot, due to Batman reminding him of Edward.