Cash and Tango were set up by someone and got arrested for it.
Is "for it" necessary?
I think you may mean ... , because they were set up. CJ
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I think you may mean ... got arrested because of it, i.e., because they were set up.
CJ
kingston123Is "for it" necessary?
It depends on what text precedes that sentence.
Cash and Tango were set up by someone and got arrested for it. While both getting transferring to "general population" section at/of/in the prison, Cash said some few words to Tango.