He was arrested yesterday in Hyde Park. Friends revealed that Mr Breed's van and front door were attacked with a machete last January. Theophilou was sectioned in February last year but had been allowed to return to his family. A friend of the Breeds, John Hall, said they were not aware that Theophilou had been freed. He added: "Simon was working on the house, making noise as all building work does, and that might have triggered this off. I don't know."