Quite honestly I think that Szeth is the best character in the Stormlight Archives series. If you think about it he is also the most tortured. We don't know much about this Szeth's past but we do know this. 1. He was one of the guardians of the honour blades. 2. He was branded truthless and given the blade that granted Windrunner powers after raising the alarm that another desolation had come. Being branded truthless meant that he had to do ever the person with his oath-stone commanded him to do with two exceptions: One- Kill himself Two- Give up the blade. 3. He was then purchased by the Parshendi and made to murder king Gavalar. 5. He then went around from master to master for a few years not killing anybody but serving, being traded quickly because his masters found him unnerving. 6. Szeth is forced to kill for a crime boss to expand his empire, in doing so he starts to become insane each time he closes his eyes he hears the screams of those he damned. 7. King Taravangian captures the oath stone and proceeds to make Szeth kill most of the monarchs of Roshare, in doing so he starts to hate his masters for making him do this blaming them for all the murders. He also blames the people he kills for not being strong enough to kill him. 8. Szeth tries and fails to kill Dalinar Kholin mainly because of Kaladin of the Windrunners who demonstrates that he is a Knight Radiant. Szeth realizes that if Kal is a Knight Radiant then everything he has done is his fault, his world starts to fall apart as he realizes this. 9. Kaladin kills Szeth. 10. Szeth is reborn as a Skybreaker and starts to make amends for all that he has done, however, he is still tortured by his past.