"The immediate cause of death in this case has been traumatic basal subarachnoid haemorrhage. This represents bleeding on the surface of the brain as the result of trauma. It is most commonly seen in cases where there is a blow causing a rapid twisting motion of the neck, but can also result from direct and forceful blows to the neck … Such basal haemorrhages usually cause almost instantaneous collapse and, most often, death. In my opinion the sequence of events in this case has been that he was struck towards the back of the head or neck. After this, he was unsteady and collapsed within a small number of seconds. Such a sequence is entirely consistent with the effects of traumatic subarachnoid haemorrhage."
"Where a case does not fall squarely within a category, adjustment from the starting point may be required before adjustment for aggravating or mitigating features."
"This was a single but heavy punch to the back of the head of a man who was in drink and would not have seen the blow coming. It is not a case where there was no obvious risk of anything other than minor harm. The category is C, with a starting point of six years and a range of three to nine years. … The aggravating features are that you were under the influence of alcohol; that you failed to heed the warning of others who had removed you from the premises and you returned to continue the violence; your actions after the event in leaving the scene; and others, of course, had to administer CPR; and changing your top. The sentence, before taking the mitigation into account, would be one of eight years' imprisonment after trial. …"