Smoking Gun

Episode 11: The Postage Stamp

The opening episode of Season Two unpicks the story of Yara Gambriasio, and the investigation into her murder. This is a story of how DNA was thought to lead to a suspect, but time and time again what appeared to be a promising lead, turned into false hope. But with methodical deductions and a steadfast determination, a killer was finally identified, thanks to the existence of a 10-year-old postage stamp.
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In every murder investigation, there's one key item that could bring a killer to justice.
But finding it....and knowing what evidence it contains....well that's the challenge. Because the smoking gun could be anything. A bouquet of flowers...a Chinese meal...a mosquito.
In this series we tell the remarkable true stories of how everyday items such as these have been the key to unlocking a criminal case. And we unpack the science - revealing the cutting edge techniques and the disciplines mastered over decades, which allow specialist forensic scientists to find this evidence.
Hosted by actor Romola Garai, and the UK's most prominent forensic scientist Tracy Alexander.