"We also have CCTV footage and phone data which confirm Denver was in the Kingseat area between 5-6pm that day," Goldie confirmed.
"Police have been working in that area over the weekend, door-knocking and speaking with local residents in case they saw anything of interest, including sightings of Denver's car, a red Nissan Skyline - registration LGH476.
"We have also been continuing to speak with a large number of people who know Denver.
"We would still like to hear from anyone that has been in contact with Denver over the last couple of months, or anyone who thinks they may have seen Denver or his car in the last fortnight, who has not yet spoken to police."
CAN YOU HELP FIND DENVER
If you can help, please call 0800 FIND DC.
Information can also be provided anonymously via Crimestoppers on 0800 555 111.