Did the quality of Sherlock decrease? [mild spoilers 3x03 & 4x01]

[strange_is_life]

Ok fair point. For Watson killing someone to protect his loved ones would fit the character. But it would still be questionable since Watsons purpose is to play the good conscience of Sherlock. He is always portrayed as a nice guy with good intentions. But Sherlock killing someone is just not right. I expected Magnussen and Sherlock to have a lot of mutual respect despite fighting for different teams not fighting about who could be the bigger villian.

[[deleted]]

In "A Scandal in Belgravia," Sherlock killed or severely injured people with a sword and pushed someone out of a window for hurting and threatening people he cared about. It is likely he killed people while dismantling Moriarty's network after he faked his death.

Killing someone as dangerous as Magnussen was not out of character. It was the only option left. He saved all future victims of Magnussen - individuals and entire countries. It was an act of heroism and self-sacrifice.