User blog comment:JAlbor/Assassin's Creed III - Character Tree/@comment-1153722-20121029231128/@comment-1153722-20121030175558

It wasn't, but I was a tad annoyed by this misconception as you can see. The Mentor located Daniel, not the other way around, and Daniel is fighting the Assassins because Abstergo is the only place he can call home and killing is all that he's good at. He doesn't seek revenge. :)