Ms. Mitchell was last seen on the night of 2 June and was reported missing the following day.
A search operation was conducted, and suspected human remains were found on Sunday, which have not been formally identified.
Mr. Rainey and another man, Ryan Johnson Gordon, 34, were charged with attempting to impede justice by concealing evidence related to the alleged murder.
Mr. Rainey appeared in court via video link and was remanded in custody until 6 July.
Mr. Gordon was also remanded pending a bail application.
The community of Ballymena worked alongside the Community Rescue Service to search for Ms. Mitchell.
A prayer vigil was held for her at Harryville Presbyterian Church.
LONDON DAILY ARCHIVE
Man Charged with Murder of Chloe Mitchell in County Antrim, Northern Ireland
A 26-year-old man, Brandon John Rainey, has been charged with the murder of 21-year-old Chloe Mitchell in County Antrim, Northern Ireland.
12 June 2023 · 14:13 UTC
