He has looked into the eyes of the country's most infamous people.As criminal barrister for 30 years, Sir Richard Henriques appeared in 106 murder trials.They included that of the most prolific serial killer in history, Hyde GP Harold Shipman.That case alone would have secured his place in legal history.But he was also chief prosecutor for a case which matched the Moors Murders for its harrowing nature.That was the trial of Robert Thompson and Jon Venables for the murder of James Bulger, aged