Disproven by whom? Do you have a link?
TheCrusader:
"Disproven by whom? Do you have a link?"
By CCTV footage. See, for example: As Mr de Menezes entered the station, CCTV shows him picking up a free Metro newspaper and calmly passing through the barrier. Dressed in a denim jacket, witnesses reported that he apparently only began running as he neared the bottom of the escalator and heard the train arriving.