As a mother to the twins, she was always kind and loving, playful, like a lioness with her cubs, never ever angry with them." Her testimony was vital to the prosecution case and she testified in court against him in October 1986. There is something about him that is honourable and wants to see justice done. To see the right decision take place.” Jeremy Bamber being driven away from court to start a life sentence for the murder of his family. Photograph: REX Caffell was the ex-husband of Sheila Caffell and the father to six-year-old twins, Shiela, Nicholas and Daniel.

He added: “I also had a lovely long chat with Mark Stanley, who plays me. It is very strange to see yourself being played. He looks nothing like me, but he got it. I was very moved by how he has portrayed things. One month after the murders at White House Farm, 21-year-old Mugford went to police with a second statement.Speaking to ITV, Stanley said: “Colin understands there has to be a licence to fit this story into a six-part drama. Between August and September, Mugford questioned Bamber’s involvement in the murders and she told police Bamber had said he had gotten a mercenary to kill the family.

He published the book In Search of The Rainbow’s End in 1994, which White House Farm writer Kris Mrksa referred too whilst writing the script for the series. To help write the drama, writer and executive producer Kris Mrksa used extensive research, interviews and published accounts including, ‘The Murders at White House Farm’ by Carol Ann Lee with additional material from ‘In Search of The Rainbow’s End’ by Colin Caffell. Speaking to ITV, Caffell said: “I’ve been approached numerous times by all sorts of production companies, journalists and writers. But this was the first time I had been approached with real respect and sensitivity. MORE: 'My personal opinion is very much that he's guilty' - author Carol Ann LeeColin added Sheila was a "kind and loving" mother to the twins. On my visit to the village, at the Thatcher’s Arms, one local told me: “The day after it happened a lot of people in the village knew the police had it wrong for one reason only: common sense.”

DS Stan Jones (Mark Addy) was the Detective Sergeant working on the real White House Farm murder case. Thirty-five years after the murders, Caffell has acted as an adviser on the TV drama and allowed his book to inform it for the first time. “One reason is to restore Sheila’s reputation,” he says. “Another is to offer hope. I’ve known many families who have been through trauma and they are destroying themselves. It’s so sad, I wasn’t going to let that happen to me. It is possible to find a way.”

Following the tragic events of August 7, the police initially believed Sheila Caffell had committed a murder-suicide. In White House Farm, Mark Stanley plays Colin, capturing Caffell’s gentleness, the deep impact of his loss and Bamber’s betrayal. “He looks nothing like me but he got it,” Caffell says.After moving to Canada, she worked as a teacher and went on to become vice-principal at a primary school. Sheila Caffell, in her modelling days. She and her twin sons were murdered. Photograph: David Thorpe/REX He also got in touch after he watched it all to say. ‘You’ve played it as I wanted it - and how I felt I was. Which is that I survived it.’”