The family of Jean Charles de Menezes say they want the officers who shot him by mistake to be prosecuted after they visited the scene where he died.
His mother Maria Otone de Menezes said: "Those who killed my son, as much as the police chief who is responsible for the whole team, should be punished."
His brother, Giovani da Silva, added: "The police should be taken to court and given the justice."
He said the process "should be taken to its end" and that the family believe they have been misled about whether CCTV cameras had been working when his brother was killed, prompting their fears of a cover-up.
http://news.bbc.co.uk/1/hi/uk/4288682.stm