Letters written by serial killer Harold Shipman while he was in prison have been made public for the first time.
The doctor murdered 215 of his patients using the drug diamorphine over a period of 20 years.
But he claims no-one saw him do anything in the letters, which are analysed in a BBC One Inside Out programme.
In one letter, he says: "No-one saw me do anything. As for stealing morphine off the terminally ill, again no-one saw me do it."
In another he says: "The police complain I'm boring. No mistresses, home abroad, money in Swiss banks, I'm normal. If that is boring I am."
Psychologist Dr David Holmes says Shipman's letters show he relished the attention of being Britain's most prolific serial killer.
Dr Holmes told the programme: "He saw no-one as being superior to him. In his own mind, in his own eyes, he was some sort of medical god."
Shipman died in January 2004 after hanging himself in his cell at Wakefield Prison in West Yorkshire.
Senior judge Dame Janet Smith led an investigation into the doctor's killing spree and went on to recommend changes to the structure of the General Medical Council, tighter access to controlled drugs and reform of death certification to make it less open to abuse.
But she told the programme she was "disappointed" that key recommendations from her report had not been achieved.