Rule question....

$1/$2 NL

EP raises to $12, MP calls, I call on the button with JTh.

Flop is Qh, 9s, 3h

EP bets out $30, MP calls, I push in for $75 on top. EP calls, but has about $6 more in front of him and doesn't put them in. MP calls as well, and turns over 99. I didn't say anything, b/c I ended up losing the pot to EPs AA even if the MP's hand was dead.

But that's my question - since EP wasn't all in and MP turned over his cards, isn't his hand dead?