Christopher Thomas Pambos. Credit:Kate Geraghty Police arrested Christopher Thomas Pambos, of Earlwood, two weeks after Tweddle vanished. Phone records indicate Mr Pambos arranged to drive from Sydney to the Blue Mountains to meet with the British-born computer sales representative on the night he went missing. Court documents reveal the 26-year-old had planned to sell Tweddle 2.5 grams of cocaine in five small resealable plastic bags. He tried to meet Tweddle sometime between 10pm on July 15 and 2am on July 16 but the pair lost contact. They never met.

Blue Mountains police arrested Mr Pambos after he allegedly supplied more than $30,000 of cocaine and $800 worth of MDMA in Sydney on August 2. He was charged with two counts of supplying a prohibited drug after he allegedly sold 128 grams of cocaine and 88 grams of the drug commonly known as ecstasy at Earlwood, in Sydney's inner west. Police also charged him with dealing with the suspected proceeds of a crime after he was found with $5930. Mr Tweddle's body had yet to be found when Mr Pambos first appeared before Burwood Local Court on August 23. Magistrate Christopher Longley granted him bail on the condition he surrender his passport and report daily to Marrickville police station.

Fairfax Media approached Mr Pambos last week but he declined to comment. He was casually dressed in a black T-shirt and shorts when he stopped briefly outside the Despointes Street station. Mr Pambos calls himself an online entrepreneur who runs a website called Simple Marketing Plan. ''SimpleMarketingPlan.com is the world's leading website and newsletter for the online entrepreneur,'' his Facebook page says. Tweddle went to Silk's Brasserie in Leura where he enjoyed a dinner with colleagues. Owner-manager Stewart Robinson said he was polite and one of the quieter members of the group. But he remembered what Tweddle looked like because he thought his behaviour was strange for someone who had not been seen to be drinking a lot. ''We noticed at that stage [when the group was leaving] that the man who went missing was a little unsteady on his feet,'' Mr Robinson says. ''It was an unremarkable night. Nobody had drunk that much. They were in a celebratory mood.'' Tweddle was one of the last people to leave the restaurant.

His colleagues helped him get into the passenger seat of a Leura-Katoomba Radio Cabs taxi. The taxi driver, who did not wish to be named, says he remembered well the 10-minute trip to the hotel. ''He was wasted, seriously wasted,'' the driver said. The driver dropped the group off and they continued to drink in one of the rooms of the resort before they decided to take their night a step further. Security footage captures Tweddle running out of the Fairmont without his jacket or glasses. It is believed he wanted to meet Mr Pambos, who he had met on previous occasions in Sydney. Shortly after leaving the resort, a distressed Tweddle rang colleagues and said he was lost. They pleaded with him to stay where he was. A motorist told police they saw him standing in the middle of the road on the phone. A short time later, his phone battery died. Tweddle's friends, family, police and more than 1000 volunteers searched for him for weeks before his body was found on September 2.

Mr Pambos has not yet entered a plea and is expected to face Burwood Local Court in October. Blue Mountains disappearance July 15: Gary Tweddle travels to the Blue Mountains for a conference. 10.41 pm: The bill is paid for a work dinner with 45 colleagues at Silk's Brasserie in Leura. 11pm: Tweddle gets into a Katoomba-Leura radio cab with three colleagues. He is unsteady on his feet. The group is dropped off at the Fairmont Resort. Several people continue to drink in one of the rooms. Police say Tweddle has only a few sips of a beer before he leaves.

12am: Police say he runs out of the Fairmont just after midnight. A short time later he rings a colleague and says he is lost. The conversation lasts 17 minutes. Police say it sounds as if he is running and jumping during the conversation. 12.15am: A car drives past Tweddle as he stands in the middle of Watkins Road talking on his phone. July 16: The search begins. Police and more than 1000 volunteers search for more than 10 days. August 2: Christopher Pambos is charged with attempting to supply cocaine to Tweddle on the night he disappeared. August 23: Mr Pambos appears in court.

September 2: Tweddle's body located on a cliff.