Tattooed thug John O'Brien, of Paddock Street in Oswaldthistle near Blackburn, attacked rival protesters with wooden pole
![Tattooed thug John O'Brien, of Paddock Street in Oswaldthistle near Blackburn, attacked rival protesters with wooden pole](http://media.kentonline.co.uk/filerepository/330x213/160805~18,8F,294,34A,258,1B8,0~1608051716989-fbe6d36c-4a8b-4656-a968-9b651cc5346a.jpg)
His neck emblazoned with a skull tattoo, John O’Brien swung a wooden pole at rival protesters as right and left wing factions faced off in Dover.