Slade Wilson: Come on, then. You've earned it.
Oliver Queen: Thea, don't!
Thea Queen: He killed Mom!
Oliver Queen: And he will continue to pay for his crimes, but not like this! You're a not a killer!
Thea Queen: Yeah, tell that to Sara!
Oliver Queen: What happened to Sara is not on you! What happens to him is! All this is what Malcolm wanted. He freed Slade to prove we're killers because he wants you to be just like him. You got to prove to him that you're not.