It was a complex situation in the comic. I recall it being someone associated with the antagonist groups, but the details are a bit fuzzy. Maybe you could look it up to get a more precise answer.
Unfortunately, Carl did die in The Walking Dead comics. It was a sad moment for fans. His death had a big impact on the storyline and the other characters.
Carl and Sophia are indeed deceased in The Walking Dead comics. Their fates were determined by the story's progression and the challenges the characters faced in that post-apocalyptic world.