Spoiler 2

So falls Randall Flagg and Eddie Dean and Jake Chambers. Three more old friends lie dead on the path to the Dark Tower. Randall Flagg was the villian from The Stand as well as Eyes of the Dragon, and has been a thorn in Rolands side since he was small. In the end it was not a hero who felled this old villian, but another villian. Perhaps it's poetic justice. Eddie Dean fell due to Rolands own mistake, his arthritis caused his hand to waver while shooting and instead of killing an opponant he only wonded him, allowing him to end the life of the last of the Dean brothers. As for Jake...He fell to save the world. Perhaps a fitting end to a boy who had already died once before. In epitaph to him as spoken by Roland:

Time flies, knells call, life passes, so hear my prayer
Birth is nothing but death begun, so hear my prayer
Death is speechless, so hear my speech
This is Jake, who served his ka and his tet. say true
May the forgiving glance of S'mana heal his heart, say please
May the arms of Gan raise him from the darkness of the earth, say please
Surround him, Gan, with light
Fill him, Chloe, with strength
If he is thirsty, give him water in the clearing
If he is hungry, give him food in the clearing
May his life on this earthand the pain of his passing
Become as a dream to his waking soul
and let his eyes fall upon every lovely sight
Let him find friends that were lost to him
Let everyone whose name he calls call his in return
This is Jake, who lived well, loved his own, and died as ka would have it
Each man owes a death. This is Jake. Give him peace.

Farwell to all of these friends (even Randall in his own way) and fellow travellors on the road. May they find happiness at the clearing at the end of the path.