An archaeologist who battled a personality disorder and other mental illnesses suffocated himself in a “peaceful” Putney graveyard while listening to his iPod, an inquest heard.

Justin Slot, of Clarendon Drive, put a plastic bag over his head and left a note to his therapist saying that his life was “too difficult to continue”, Westminster Coroner’s Court was told.

The 34-year-old was found by a dogwalker in the garden of the Putney Old Burial Ground, in Upper Richmond Road, on May 14.

The inquest heard how Mr Slot left a note to his trusted therapist, thanking her for all her help, and admitted he found life too much of a struggle.

It is thought Mr Slot climbed over the garden’s walls the night before, after having dinner with a close friend, with a bag containing his iPod and a plastic bag.

He was found dead the following morning with the bag pulled over his head and the iPod earphones still in his ears, the inquest heard on August 4.

PC Alexander Gill, the first officer at the scene, described the garden as a “peaceful area surrounded by trees”.

In July 2008 the New Zealander was diagnosed with a personality disorder and his doctor confirmed he had lifelong battles with depression and anxiety.

Coroner Dr Shirley Radcliffe said: “Justin Slot was born with a disorder that made enjoying life very difficult and he got to the point where life was too painful.

"I will therefore record that he died from asphyxiation.

"My verdict is that he has killed himself.”

• Samaritans provides confidential non-judgemental emotional support, 24 hours a day for people who are experiencing feelings of distress or despair, including those which could lead to suicide.

They can be contacted by phone on 020 8681 6666 or visit www.samaritans.org to find your local branch.