It’s pretty hard to be a bigger P.O.S. than Lost‘s Ben Linus, but if there was any character to do so, it was Martin Keamy, the ruthless mercenary who had no reservations about killing as many innocent people as possible to complete his mission, including Ben’s “daughter,” Alex Rousseau. Therefore, fans were more than satisfied when Ben was able to enact his violent revenge, even if it doomed some other characters, including Michael Dawson, who, admittedly, kind of had it coming too.

Source: https://www.buzzfeed.com/kenwhanley/satisfying-tv-villain-deaths