Dishonored Chaos Help?

So at lady Boyles party, I killed one person(the guy who makes you duel with him after giving him Pendletons note). I also knocked out one guard(body was never found. I got Lady Boyle in the non-lethal way. I still got High Chaos. Why? I only used Possession on lady boyle and a guard. So why high chaos? The count at the end was 1, and 0 for everything else.

2014-01-21T07:52:54Z

Thanks Dakota, but that is exactly what i did to Lady Boyle. And the guards did not kcare if you killed the one dude you had to give Pendletons note to, cause is was a dual.

?2014-01-21T07:45:18Z

because it is possible to run it without killing a single person
there will be a dude with a messed up ugly rabbit mask, talk to him twice and find lady boyle, strangle her out then sneak her to the basement and put her in his boat