Mr Blanco, 30, an actor and Cambridge University philosophy graduate, died after attending a small gathering in a block of flats in London’s Whitechapel with former Libertines frontman Pete Doherty.

Blanco was later found dying on the pavement outside, having apparently fallen from a balcony. His mother, Sheila Blanco, however, believes he was killed, and has spent the past 17 years trying to prove it.