Corvus Corax
The Primarch of the Raven Guard Some Emo piece of shit that got totally owned then became a total pothead.
Then got so depresed that he decided to get super high and got himself lots of 'Geneseed' but in the proccess eventually created really really fucked up mutants in his emo chapter (all his space marines were EMO)
Then everyone got pissed at him so he went even more fucking emo and locked himself in a bigass tower of a few years and when he finally got his shitty sanity back ran off like a pussy to Abbadons house.