It was a Saturday afternoon in the autumn of 2012 and Tess Gardiner, a 23-year-old press officer, was on her way to a friend's party near Oxford Circus.
She'd clocked him immediately — the tall handsome man who'd boarded the same Overground train as her at West Drayton — but thought nothing of it, except for subconsciously or perhaps somewhat consciously choosing to get onto the same carriage as him when it turned out that he was also changing onto the Central Line at Ealing Broadway.
