He was put back in custody for the remainder of the hearing.
Wilson, 49, of Hamilton, earlier pleaded not guilty to charges of manslaughter, kidnapping and conspiring to defeat justice.
Simon Peter Walker, 36, of Hamilton, is in custody and denies charges of murder, kidnapping, conspiring to defeat justice and a new charge of interfering with human remains.
Christopher Ramia Smith, 34, is on bail, and had his charge of manslaughter upgraded to murder. He also denies charges of kidnapping and conspiring to defeat justice.
James Lee Green, 27, of Western Bay of Plenty, is also on bail and denies charges of conspiring to defeat justice, driving while disqualified and interfering with human remains.
Grant Stewart Wickens, 33, of Hamilton, remains in custody after earlier pleaded not guilty to manslaughter, kidnapping and conspiring to defeat justice.
Kyra Betteridge, 29, is also on bail and denies charges of conspiring to defeat justice and interfering with human remains.
A trial date remains in place for July 1, next year, however there will be a callover on February 26 to check progress.