A retired firearms officer who shot dead an innocent electrician mistaken for a suicide bomber has issued an apology to his grieving family.

Almost two decades after the tragedy, one of the two marksmen who killed Jean Charles de Menezes has spoken publicly about the shocking murder for the first time.

The 27-year-old was shot dead in the head by two officers at London's Stockwell station on July 22, 2005 having been wrongly identified as failed July 21 bomber Hussan Osman in the aftermath of the 7/7 London bombings.

Now, in an emotional statement, one of his killers has expressed how he wishes to say 'sorry' to Mr Menezes' family, adding that he 'would do anything to roll back time, to have a different set of circumstances where that didn't happen'.

Speaking in a four-part Netflix documentary set to be released next week, the policeman, codenamed C2, reflected on the tragedy, adding: 'By the time I got home I was aware there was speculation regarding the identity of the person I had killed. I didn't get any sleep, and I still had massive tinnitus, a very, very loud ringing in my ears.