Thorfinn Rowle
Not intentional. For all you know, something you've done in your past could have caused someone to die. Would you be a "murderer" for it. I don't think so.
No. Because I didn't set out to kill him. I just wanted to give him a scare. It happens all the time. Bludgers come too close to someone or someone knocks another off their broom or players even vanish for weeks at a time. Shite happens in Quidditch.