Board Thread:Warhammer 40k General Discussion/@comment-58.179.157.107-20140511083958/@comment-50.83.1.9-20140511195532

Because Horus was the first one to be found, he was the favorite child. The Papa Smurf was a chump who probably would have launched a secessionist movement down the line if the Horus Hersey has not happened and the Great Crusade had kept going. Dorn was a braggart and fool, leaving only Ferus Manus and Horus as the two rational choices, and Horus was the one who had spent the most time with Emperor and as such he thought he could be trusted.