Today Mr Tomlinson’s son Paul King, 26, branded the attack “sickening” and demanded a criminal investigation after viewing the video footage. He said his father had been at Monument station at about 7pm where he had been helping to sell the Standard.
He was trying to make his way home to a hostel near Smithfield Market but could not follow his normal route because of police cordons.
Mr King said: “This video clearly shows an unprovoked attack by a police officer on a passer-by. It is sickening. There must be a full-scale criminal investigation.
“The officer concerned and the other officers shown in the video must come forward.
“Questions must also be asked about the hyping up of the prospect of violence in the run-up to the demonstrations. An atmosphere was created in which this sort of conduct became more likely.”
Mr King told how his mother and sister are struggling to come to terms with his father’s death. He said: “We want answers: Ian clearly had his hands in his pockets and his back towards the police. There is no need for them to step in towards him.”