While I wouldn't call it a "death route", Liberty Ridge has a LOT of objective danger. I came closer to death (about 12" away) than on any other route I've ever been on.
An excerpt from my TR (late June, 03):
"The left (east) side of the toe of the ridge, which is the side you are supposed to gain the ridge from the Carbon Glacier, is mostly snow-free. We gainied the ridge on the right (west) side without too much technical difficulty and connected snow patches while traversing right until we could head up to thumb rock. LOTS OF ROCK FALL HERE!
In the middle of the night at thumb rock, a 12X3X8 inch rock ripped through our vestibule and the corner of our tent about 12 inches from my head. Simultaneously, a round, baseball-sized rock glanced off the tent pole directly above my partners head and ripped the fly in several spots. Had either of these rocks hit us in the head, we most certainly would have been killed. And this was AT THUMB ROCK! a supposedly safe place. We slept the rest of the night with our helmets on and put our packs and such on the uphill side of the tent and said a few prayers.
The next day, we encountered COPIOUS ROCK FALL in several spots, and were never really out of it until we traversed left from under the black pyramid."
I know it's tired and cliche, and probably doesn't mean much coming from an anonymous person on an internet chat board, but I feel for the surviving climber and for the family of the lost climber. I'm really sorry.
RIP.