Simon Knight (pictured) who would have turned 36 yesterday, is still missing since 2005, when he was last seen in Surry Hills, on 21 July.

A $100,000 reward for information his whereabouts was offered by the NSW government after last-ditch plea for help from Simon’s mother.

I knew Simon but I hadn’t seen him for around a year at the time of his disappearance. The then 32-year-old suffered from depression but had apparently stopped taking his medication. He was last seen at a Surry Hills hotel and reportedly spent the night with an escort who he’d known personally.

The inquest into Simon’s disappearance couldn’t conclude if he was dead or alive. His mother - Robyn Conlan - said the case wasn’t taken seriously enough at the time.

“He was 32, gay, taking drugs at the time fairly heavily, and they disappear all the time,” she told Sydney Star Observer in March this year. “We were very angry, because it was my ex-husband and myself who found where he had stayed the night and the escort that he was with.”

“He just disappeared. He left the house he was sharing, with his bicycle and his camera and withdrew $500 from the bank and went to this hotel, obviously tried to get this particular escort. But there were conflicting stories about the escort and his friend.”

If you know ANYTHING about Simon’s last weeks or his disappearance on 21 July 2005 please contact CrimeStoppers on 1800 333 000 or visit this website.