A murder investigation was launched after the remains of Mr Heagney, 47, were recovered from a reservoir in Cappagh, Co Tyrone, in August.
Mr Heagney, from Cookstown, was last seen in Dromore on New Year’s Eve in 2021.
The 39-year-old is due to appear before Strabane Magistrates’ Court on Thursday, October 13, for a first remand hearing.
The suspect was produced from prison earlier this week into police custody for questioning about Mr Heagney’s murder.
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