Likely you had your reasons for killin' Futterman.
5 seconds sound clip from the The Searchers (1956) movie soundboard.
You can hear this line at 01:42:21 in the Blu-ray version of the movie.
Quote context
[...]
- There ain't gonna be no wedding. Not till we get a few things cleared up around here.
- It was a nice wedding party, considering nobody got married.
- I gotta ask you and Martin to take a ride with me down to the state capital.
- Is this an invite to a necktie party, Reverend?
- Likely you had your reasons for killin' Futterman.
- I'm talking to you now as a ranger, not as a preacher.
- The fact that all three of 'em was shot in the back was the only thing that raised some questions.
- That, and a missin' gold piece that was known to have been on him just prior to his demise.
[...]