Telegraph : MI6 spy Gareth Williams was a child prodigy whose private life was kept secret from closest friends and family

MI6 spy Gareth Williams was a child prodigy whose private life was kept secret from closest friends and family

By Victoria Ward | December 22, 2010

Gareth Williams, the MI6 spy who was found dead in a bag in his bath, was a child prodigy.

He took a maths GCSE at primary school and A-levels at 13, graduating with a first from Bangor University by the age of 17.

He went on to study advanced mathematics at Cambridge, eventually leaving because he felt he had learned all he could.

Williams grew up in Anglesey, north Wales. A quiet child from a tight-knit family, whose great passion was cycling.

Friends said that despite his extraordinary mathematical mind, he was "very naive about people". He was a loner, with few social contacts, even among his work colleagues. He struggled to make friends after being catapulted into the company of older people at an early age.

Dylan Parry, 34, from Anglesey, said he was an isolated child. "He never really made friends, either his own age or from those younger than him,” he said.

“He didn't have any of the normal childhood interests or pursuits of teenagers. His only real interest was maths. He was obsessed with his subject. Socially he was very awkward but very nice."

By the time he left Cambridge, Williams’ potential had already been spotted by GCHQ scouts.

In 2001, he took at job as a code expert at the GCHQ "doughnut" building in Cheltenham, working alongside hundreds of mathematicians, cryptologists and analysts going on to develop techniques to speed up data encryption.

For the first time, it is likely Williams felt challenged and comfortable in his surroundings, working with like-minded people in a top-secret environment that suited his personality.

His sparse bedsit was immaculate and devoid of personal belongings and clutter. His former landlady, Jenny Elliot, 71, said that “his life was his work”.

In 2003, Williams spent six months at Menwith Hill, the RAF station in Yorkshire and in 2006 he spent time at Fort Meade in Maryland, home of the United States’ National Security Agency, GCHQ’s partner in global surveillance.

He is also reported to have made a number of visits to Afghanistan.

Last year, he was seconded to the London headquarters of MI6, a sign of his steady progress up the hierarchy at GCHQ.

The 31-year-old was assigned to live at 36 Alderney Street, in Pimlico, central London, an MI6 safe house.

Williams died before he could take up his next post in the Cyber Security Operations Centre at GCHQ, his intensely private personality meaning that the circumstances surrounding his mysterious death are baffling detectives three months on.