A man who has been tortured by the death of his 17-year-old son for more than a decade is hoping the truth surrounding the teenager's death will be revealed when the case is re-heard next spring.

Chris Coyne, of Warminster, claims key witnesses withheld vital information at the inquest. Toby Sebastian Coyne's body was found on a railway track in Barking, East London, on November 2, 1988.

Initially, suicide was thought to be the cause of death, but Mr Coyne refused to accept this and an open verdict was recorded.

Mr Coyne used to own a gym and bar in Westbury and has lived in Warminster since 1991.

He said: "I'm well known in the area, and I want local people to know I do have a family who have been hidden from me all these years.

"I haven't been able to sleep for 13 years. The people responsible for my son's death think they have got away with it but I will keep on going until the truth is out."

Mr Coyne was the assistant manager of the Brockwell Park Tavern pub in Brixton, London, in 1988.

He tried to stamp out the pub's drug problem, and at the end of the year, threw out a gang he thought were dealers.

A shot was fired as they were taken outside, which injured Mr Coyne. He left the pub with his son, but returned later to find a riot in the bar.

The police arrived and eight people were arrested, but were released without charge the following day.

Mr Coyne resigned and took his son to the safety of a nearby house. But against his father's wishes, Toby returned to the pub later that night.

Mr Coyne explained: "I asked police to get him out, but they came out without him. I couldn't go back to get him as half a dozen people would have been waiting for me.

"I went back at 10 o'clock the following morning, but wasn't allowed in. I sent someone in that afternoon to leave a message, which told him to go to my ex-wife's house, and phone me.

"He rang on the morning of Tuesday November 2 and I told him and his mother that under no circumstances should he return to the pub."

But after an argument, Toby left and returned to the Tavern, and what happened next is still unknown.

Mr Coyne has two other sons, but has not seen Thomas since a court hearing in 1990 and was only reunited with Ben in May this year.

Lengthy conversations with Ben gave him strong evidence about a cover up and made him more determined to pursue those, he believes to have lied under oath.

My Coyne continued: "I received a letter in 1990 from someone I had never spoken to, which was full of lies. I also found out that a letter I received from Ben, when he was 14, which said he wanted to live with his mum, was dictated to him."

A distraught Mr Coyne was not told the time or date of his son's funeral and claims evidence was destroyed when the body was cremated before the inquest.

He hasn't heard from his ex-wife since 1988 and none of the family is speaking to him.

He said: "Overnight I had lost my job, money, belongings and my son. This has affected all my remaining children and grandchildren and I want them to know the truth."