When Awais Akram answered his mobile to Sadia Khatoon, a 24-year-old married woman whom he had met on Facebook and had recently started a physical, but not sexual, relationship with, he had little idea of the fate that was about to befall him.
Mrs Khatoon insisted they meet outside his flat in Leytonstone, east London, but as Mr Akram stepped out into the summer sunshine his lover was nowhere to be seen. Instead he was confronted by three masked men wearing gloves, one of whom was carrying a bottle of "Give It One Shot" drain cleaner.
The men, who included Mrs Khatoon's brother Mohammed Vakas, had come to wipe off what they believed was a stain on their family's "izzat" (honour). Beating and stabbing Mr Akram was not enough. As he lay bleeding on the floor, Vakas stepped over his victim and poured the entire bottle of drain cleaner over Mr Akram's face and body.