I got to thinking about DC's super no kill policy for heroes.
Ollie killed Prometheus, after he destroyed and entire city and thousands of innocent people, and the surviving citizens of that city and the hero community seems to have abandoned him and want him arrested.
Wonder Woman killed Maxwell Lord and saved the world from a mind controlled Superman. She lassoed Max and said that was the ONLY way to stop him. Everyone turned against her. Even Themscayra did. This is the best known female hero in the DCU and people hated her for saving them. Even Superman was not happy.
Dick Grayson killed the Joker in the Last Laugh by beating him to death. Sure he was resuscitated afterward, but he still technically killed him. No one seems to have mentioned it since then and they seem OK with it.
Why is it that he got off so easily?