Wasn't there some sports player (baseball I think) that was out trying to impress his friends in his Citation II and crashed? A magizine did an aritcle on this and had some thing like 5 single pilot crashes total. Not bad at all if you ask me. I've flown single with buddies in single pilot Citations and they had no problem at all. As long as you know what you're doing how hard can it be comparing it to a King Air?
EDIT: What about that CJ that crashed killing like 5 people last year? There were two certified pilots on board, but one has high, so he wasn't counted as a crew member.