User blog comment:Stealth Cl0wn/The deaths that hit you the hardest (Massive spoilers)/@comment-5503561-20120412221639

Mordin and Legion, mostly because they went in to ensure a bigger cause got accomplished for greater good. Thane went out fighting, so it wasn't that heart-pulling.

Also, I've been counting time between the time Mordin gets from the top of the elevator to the console, and the time between his repairs of STG sabotage to the moment the Shroud blows up behind him. He clearly had just enough time to get back to the elevator and start going back down. So while I admire his sacrifice, this has to be done now.

"Pointless. Pointless waste of life."