Has Deku killed anyone in the manga?

In the manga, Deku doesn't resort to killing. His powers and actions are centered around being a hero who brings hope and justice without causing fatal harm to others. He believes in rehabilitation and redemption rather than outright elimination.

Yes, Superman has killed on rare occasions in the comics. Usually, it's in extreme circumstances where he has no other choice to save many lives.

I'm not sure of the precise percentage. Different people might have different estimates. It's best to keep up with the manga's ongoing chapters and see for yourself how far Deku's story has progressed.

Occasionally, Batman has been depicted as killing someone in certain comic storylines. However, this goes against his usual code of not taking a life and is usually a plot point that has significant consequences and character development.

Occasionally, Batman has indirectly or in extreme circumstances been associated with the death of a character. However, his main principle is to avoid killing and find non-lethal solutions to crime-fighting.

As far as I know, Flash Thompson has no record of killing anyone in the comic series. His character is usually involved in other types of storylines and conflicts.

Batman has killed in a few comic storylines. But typically, he adheres to his principle of not using lethal force as it's a core part of his character. These instances are outliers and often controversial among fans.

Yes, Superman has killed on rare occasions in the comics.

Doctor Strange has killed in the comics, but it's not a straightforward matter. It depends on the specific storyline and the context. Sometimes it's a necessary evil to safeguard the greater good of the universe.

In certain comic arcs, Daredevil has been pushed to the limit and has resorted to taking a life. However, this is usually a morally complex decision for the character and often has significant consequences in the story.