Excerpt:
When Mehmet Goren claimed that his daughter Tulay had run away, his wife had good reason to suspect he had killed her – because he had tried to murder his whole family in the past.
Hanim Goren could never forget the occasion when, according to Mehmet's own relatives, he turned up at the house in Turkey late one night and presented her with a cup of poison and ordered her to drink it.
There was also the night in the early 1990s when, it is said, he tried to gas his wife and children, shutting the doors and windows and opening the tap on a canister of cooking gas as they slept.
On both occasions, which were not disclosed to the jury at the Old Bailey, he panicked after being disturbed and fled.