The police officer cleared of killing Ian Tomlinson will be sacked after being found guilty of gross misconduct at a disciplinary hearing dismissed by the newspaper seller's family as a "whitewash".
A Metropolitan Police disciplinary panel, sitting in public for the first time, dismissed Pc Simon Harwood for breaking rules relating to professional standards.
However, the family of Ian Tomlinson reacted with anger to the decision.
Pc Simon Harwood's lawyer said he accepted his actions 'discredit' the Met Police
Speaking outside a police building in Earl's Court, north London, where the hearing took place, Mr Tomlinson's stepson Paul King dismissed the procedure as "showboating".
He said: "I think it's pointless, it hasn't proved anything to us. We still haven't got any answer from this. After three-and-a-half years, I think its diabolical. It's like we're back at day one.
"We will carry on, it isn't going to be the last of it."
He said there was "no justice" in the fact that Harwood now faces the sack.
The family are planning to take civil action over Mr Tomlinson's death.
Harwood admitted that his actions and the way that they were reported had caused discredit to the Met, and this amounted to gross misconduct.
He hit Mr Tomlinson with a baton at the G20 protests in April 2009 and shoved him to the ground, and the panel decided not to consider an allegation that his actions had led to the 47-year-old's death.
Mr King said: "It's a whitewash. It's like they've let him resign already."
Flanked by his brother and Mr Tomlinson's widow Julia, Mr King said it was as if the force had given a "no comment" to the question over whether PC Harwood's actions led to Mr Tomlinson's death from internal injuries.
An inquest found that the father-of-nine was unlawfully killed, but Harwood was acquitted of his manslaughter.
The family's solicitor, Jules Carey, said the family had been "cheated of an opportunity" to address the difference between the inquest verdict of unlawful killing and Harwood's acquittal for manslaughter.
Mr Carey added: "The family want a judgement in the civil court. They want it to be determined finally whether or not PC Harwood is guilty as an employee of the police of killing Ian Tomlinson."