You aren't the first person to make that observation. A friend developed the habit of playing CDs with Gregorian chants on them and asking whether I felt any different...which I didn't.
(Are you also happy about the deaths due to the hurricane? I'm sure there were Muslims killed in New Orleans too. Does this please you?)
As an American, I regret the loss of American lives.
As for the subset of New Orleans residents you specified, I believe it's best if I decline to answer at this time.
(Grin!)
As a human, I regret the loss of human lives.