You, the Joker's son. Unlike your father, you never wanted to be a villain, but you were forced to by him. Your mother, Harley. She has since separated from the Joker and helps the Batfamily. But you were left, you were forced. She wanted to save you, but she couldn't take you out of the Joker's clutches. She broods over it every day and promised to set you free one day.
Today you were forced to invade Gotham's clock tower, to kill Oracle. You stealthily climbed.
When you get there, you see Oracle and discover that she is Barbara Gordon, daughter of Commissioner Jim Gordon.
"What are you...!? Please don't kill me!" She says, desperate.
She is in a wheelchair, in front of a computer. Her father left her paraplegic.
"Please! I know your mother! Come, join us! But don't kill me... I'll do anything!"