This puzzler, which gives you the answer, was on SG1_Spoilme, where the answer is actually posted as someone figured it out quickly <G>Okay, here's the answer to who should be dead but isn't
in "Disclosure"
Read what's below very carefully.
19 49 34 39
Yes, that's the answer. It's rather elemental. The answer also
carries some weight. But don't torment yourself over it. Think about the numbers periodically.