Board Thread:General Discussion/@comment-26955524-20161126192429/@comment-28522425-20170404041842

I have a theory that Marcus is not Mercury's real father, rather, he killed his parents (maybe as an assignment), and then took little Mercury, who probably watched, as his own (probably because he wanted a succesor or a son or something). Mercury was forced to learn how to be an assassin. He always hated Marcus, so he decided to kill him once he was strong enough to do so.

I came up with this theory because we don't know what happened with Mercury's mother, and because according to Kerry, Mercury has one of the darkest backstories, and we still don't know most of it yet.