Kevin hadn't expected this question, but it would explain why Ian was traumatized, so he replied to him, hoping to learn more about his story, "I was 15... I was 15 when I decided to become an assassin. The men I killed were all criminals; my world was much more corrupt than yours. For me, even though there are conflicts in your world, it is still pure; evil doesn't appear everywhere like in my home world."
Ian then nodded and told him honestly, "I'm just starting to accept what I have done... Liam helps me a lot with this, but he doesn't understand everything... I was your age when it happened to me. The man my parents worked for tried to rape me, and I disintegrated him with the particles of fire."