yotsuya said:
But the PT makes it even more clear that a Jedi should not just indiscriminately kill. Anakin knew this when he had Count Dooku at his mercy. But Palpatine egged him on to do it.

Circumstances are quite a bit different between capturing an enemy combatant in a war so he can stand trial, and letting a dictator who has the backing of an entire empire behind him live, who you know will continue to kill and destroy in the future. If Windu let Palpatine live, would that have been smart too? When Anakin said he must stand trial, it wasn’t him pleading for Windu to do “the Jedi thing,” but a desperate attempt to keep him alive so he can learn his secrets.

I just think it’s incredibly silly to believe that it’s the Jedi way to let people go in these circumstances. The Jedi no longer have a judicial system to imprison their enemies. They are compassionate and willing to give second chances, but Vader straight up told Obi-Wan that he is unapologetically evil. It makes Obi-Wan directly responsible for every murder Vader commits from this point on even more than when he left him on Mustafar, where there was plausibility that Anakin was going to die from his injuries.