Your post, lookout, tells everyone who bothers to check their facts, that you did not read either of the links provided by other posters, before making your last comment.
"He must have known what they were going to do?" OK, so he must have known that Mr Newlove was going to come out of his house and remonstrate with them over damage caused by other youths (yes, this was a wrongful accusation from the off!!!) He must have known that this mistake by Mr Newlove was going to get heated (perhaps because Mr Newlove was unaware he was remonstrating with the wrong people?) He must have known that a single blow would kill Mr Newlove?
Jordan and his friends were not involved in the incident that brought Mr Newlove out of his house in the first place - they were being held to account, quite aggressively, for something they had not done. How could anyone have foreseen that?
Jordan Cunliffe, like so many others convicted under Joint Enterprise, was in the wrong place at the wrong time. But, because of the way Joint Enterprise doctrine is being used, any young person could find themselves in the wrong place at the wrong time, simply by doing what young people do - hanging out with their mates.
We had a case here in Scotland not so long ago - an argument erupted (young people, but not as young as Jordan)- and a few punches were thrown. One connected, and the recipient of the blow died - he apparently fell backwards and hit his head, that injury being enough to kill him. No-one was convicted of anything - it was adjudged to be a tragic accident - so, you see, it's something of a lottery - unless there's a mindset which wants to see foul play and murderous intent, common sense prevails.
The fact remains, Jordan Cunliffe could not have forseen the events of that evening, and he most certainly could not have seen events as they spontaneously emerged. He and his friends had not set out that evening on any "Joint Enterprise" to get into any sort of trouble whatsoever - they were drawn into events because other youths had been causing trouble, and Jordan and his friends had been mistakenly "identified" as being those other youths.