Police have also arrested a 42-year-old woman for allegedly inciting the assault.
She is also due to appear in court today.
Whakatane Area Investigations Manager, Detective Senior Sergeant Paul Wilson said while police were yet to charge anyone with Wharton's murder, the investigation team, including detectives from the wider Bay of Plenty district were focused on piecing together the exact movements and actions of those involved in his death.
"They know exactly who they are and we're committed to holding them to account for Jamaine and his family and friends.
"We would like to thank those people who have come forward with crucial information."
Anyone who has not yet made contact is asked to call police on 105, quoting file number 210228/0465.
Information can also be passed on anonymously through Crimestoppers on 0800 555 111.
