Police have released photos from the security cameras at Taupo's Tauponui-a-Tia College as part of the investigation into the murder of Karen Aim at Taupo on the 17 January 2008.
Detective Senior Sergeant Greg Turner said the two images show a person riding a push bike in the College grounds at 2.06 am and 2.10 am on Thursday morning 17th January.
Mr Turner said the images were recorded at the time it is believed the damage was being done to the school buildings.
"We also believe that Karen Aim would have walked past the college at about the same time," said Mr Turner
"A focus of the homicide enquiry is to identify the person shown in the images. This person may have information that would lead to the person or people responsible for the damage to the College."
Anybody who can identify this person or has any information that could lead police to identify this person should contact the investigation team said Mr Turner.
Contact Operation Waikato - 07 3786060