Poll Suggestion: Movies Where Both the Hero and the Villain Dies

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Warning: Spoilers

Road to Perdition (2002)
https://www.imdb.com/title/tt0257044/

https://www.imdb.com/title/tt0257044/reference/

A mob enforcer's son in 1930s Illinois witnesses a murder, 
forcing him and his father to take to the road, 
and his father down a path of redemption and revenge.
  
Tom Hanks ... Michael Sullivan
Paul Newman ... John Rooney
Daniel Craig ... Connor Rooney

Jude Law ... Maguire
  
https://www.imdb.com/title/tt0257044/reviews - 1,117 Reviews

None of the characters in here, frankly, are "good guys"
as Hanks is a professional hit-man for town boss Newman.
  
https://www.imdb.com/title/tt0257044/ratings

263,146 IMDb users have given a weighted average vote of 7.7 / 10

https://www.imdb.com/title/tt0257044/tvschedule

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Crouching Tiger, Hidden Dragon (2000)

Alien 3 (1992)

RoboCop (1987)

A note about RoboCop: this movie qualifies for your list if you consider Officer Alex Murphy and Robocop to be the same character, which I think is a reasonable conclusion to make.

You have included Logan (2017) in your list, but technically that movie doesn't qualify, because your list description states that the hero and villain "die by killing each other," yet in that movie, X-24 kills Logan, while Laura (not Logan) kills X-24. 

#Bump