sounds like The Godfather, except the second son gets shot.
Winner!
Lee Dutton and Sonny Corleone are both oldest sons and both shot.
Lee Dutton
Lee Dutton was a cowboy/ranch hand, the oldest son of big cattle ranch owner John Dutton and his wife Evelyn Dutton. He was essentially played by Dave Annable, but Kip Denton played a younger version in several flashbacks. Beware of 'spoilers' from here on down! Click here for the main page of...
western-series.fandom.com
Sonny Corleone - Wikipedia
en.wikipedia.org