I guess it's a bit complex though: Player A declares a challenge with Deadly character involved. I defended with no Deadly characters and won the challenge. However, since I used Stark and I had an event called something like 'Routing Charge...etc', which allowed me to kill one character once I won a challenge. So I immediately killed that Deadly character.
Question: That Deadly character's been killed, so do I need to kill my defending character to satisfy that Deadly keyword?