I'd show up, hang in a bit.

<asking to hear a statement again a couple of times>

"Sorry guys. Just not with it today. My uncle died last night, had to come in, having a hard time concentrating."

Notice I didn't throw my boss under the bus? :) But the question of why I had to come in festers like a lingering fart. Now the boss has to play the good guy, or praise me for me sacrifice. Either way he looks an ass and I said nothing against him.

Play it from there.