According to Sussex Police, while Daley was in prison awaiting trial he wrote and addressed a letter to the BBC in London. The letter contained three handwritten sheets of A4 paper that detailed what Daley thought happened on July 16, the day of the killing, as well as his horses and goats.
The letter was seized before it was posted and was used as evidence during the trial, which concluded today (May 16). Daley was found guilty of manslaughter on the grounds of dimished responsibility.
A police report said the jury heard that Daley suffers from paranoid schizophrenia and although he believed he saw Mr Lock looking angry in his car, this was part of his delusion.
Daley will be sentenced on July 8.
Don’t miss out on all the latest breaking news where you live.
Here are four ways you can be sure you’ll be amongst the first to know what’s going on.
1) Make our website your homepage
2) Like our Facebook page
3) Follow us on Twitter
4) Register with us by clicking on ‘sign in’ (top right corner). You can then receive our daily newsletter AND add your point of view to stories that you read here.
And do share with your family and friends - so they don’t miss out!
Always the first with your local news.
Be part of it.