Well I killed my first player last session.  Ryan took it pretty well and was rolling up a Shaman to replace his Warden before the rest of us were even out of combat.  I still felt bad, which means I suppose that I don't make the cut as a DM.  I think what it really means is that neither Shawn nor I were building encounters correctly and that we as players are really sloppy about tactics.  I've been trimming the encounters to make up for the fact that there are only four characters instead of five, but they are still having a hard go of it.  The adventure gives lots of opportunity to use environment, they just aren't really taking advantage yet. 

My players decided, immediately upon arrival at the ruins of Spellguard, to forgo sleeping or eating or talking to anyone or acting like people who have just completed an arduous trek through the wilderness and just set off through the ruins on the rumor of kobolds.  One player who shall not be named, oh let's call him Bob, didn't listen to a word that I said all through my opening scene setting and only looked up from reading his power cards when he heard the word "kobolds."  And then he didn't even remember what they were called.  "Let's go - kill the things."

Sometimes it's hard being a DM.