I think the alibi sounds a bit iffy. Dolly Kray, the wife of Charlie Kray who is the brother of the famous Kray twins, who is not upset when he finds out that his wife was with Ince...


Hi Patti, Iffy or not, the informant made no mention of Ince, and named two other men who were directly linked to the murder. These 2 suspects also made no mention of Ince. The victims also claimed there were only two men involved. I don't know why Charlie Kray would encourage his missus to be a defence witness for Ince, perhaps he knew Ince was innocent of the murder and attempted murders

I was suprised that Johnson only recieved 10 years for his part, it should have been more IMO.
Taken from the link above
Shortly after the acquittal of Ince, the police in the Lake District arrested a petty crook by the name of Peter Hanson. No doubt anxious to earn the usual credit from the authorities for turning informant,
Mr Hanson told police that a certain John Brook had boasted to him of his role in the Barn Restaurant Murder, named his accomplice as one Nicholas Richard James de Clare Johnson, and even knew of the whereabouts of the murder weapon. Peter Hanson was able to direct the Cumbria police to a local guesthouse where they were able to recover an Italian Baretta 38 automatic pistol which had been hidden in a mattress. Forensic tests later confirmed that it was the weapon used in the Braintree shootings.
When arrested on the 15th June Nicholas de Clare Johnson made a full and frank confession of his involvement and also named John Brook as the shooter. It emerged that the two men were convinced that there would be at least ten thousand pounds in the house safe and had both ingested large quantity of alcohol and narcotics in order to steel themselves for the job, a fact which goes a long way to explaining their callous treatment of the Patience family as well as their basic incompetence in executing their captives.
Brook and Johnson were both tried in January 1974. John Brook was convicted of murder and attempted murder and sentenced to life imprisonment. Nicholas de Clare Johnson was convicted of manslaughter and got ten years.