A “wholly innocent” 16-year-old boy was “in the wrong place at the wrong time” when he was shot dead on a canal towpath, a jury has heard.Lewis Dunne was on his way to a shop when he walked into the path of four men lying in wait with a loaded weapon and with “murderous intent”, Liverpool Crown Court was told.The shooting in Vauxhall, Liverpool, was said to be the culmination of a series of incidents in the area on November 15 last year between two groups of males which involved the deliberate ramming of vehicles, chases and violence on the streets of the city.Opening the prosecution case, Ian Unsworth QC said: “Put shortly, at the time of the fatal attack upon Lewis Dunne the defendants were intent on revenge. Lewis Dunne was ‘in the wrong place at the wrong time’Credit: Liverpool Echo “They had obtained a deadly loaded firearm and acting as a group they sought revenge upon those they opposed and who they had had trouble with earlier that day.”Lewis Dunne was not involved in any of those previous incidents. He was simply on his way to the shop at the time that he lost his life.”Whether he looked like one of the opposing group or whether they simply believed he was one of the opposing group, they used the gun to shoot him dead as he unwittingly walked into their path.”The prosecutor added: “Lewis Dunne had no axe to grind with these men. He had done nothing wrong.”Three of the men who took part in the “cowardly attack” alongside the Leeds and Liverpool Canal were in the dock, Mr Unsworth said, but police had not yet been able to identify who they say the fourth man was.Jake Culshaw, 25, of no fixed address, and brothers Paul Martin, 25, and John Martin, 20, both of Ince Avenue, Anfield, deny murder.The prosecutor told jurors at Liverpol Crown Court: “There is no direct evidence to to say which of those four men pulled the trigger and shot Lewis Dunne.The simple fact is this – he was shot in the back by one of a group of four males who had walked in darkness along that canal towpath armed with a loaded lethal weapon.”That we cannot say which person actually shot him does not matter.”In short, we suggest on a proper analysis of the evidence … each of the three defendants bears the responsibility for the death of Lewis Dunne.” Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.