It's being reported all over the main news sites that he was only 'pushed'. However, as they point out in the video, prior to being pushed he was hit on the back of his left leg with a baton. This could have led to a fatal deep vein thrombosis...
What are the causes of deep vein thrombosis?Blood is meant to flow; if it becomes stagnant there is a potential for it to clot. The blood in veins is constantly forming microscopic clots that are routinely broken down by the body. If the balance of clot formation and resolution is altered, significant clotting can occur. A thrombus can form if one, or a combination of the following situations is present:
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Trauma to the veinFracture to the leg
Bruised leg
Complication of an invasive procedure of the vein
More details:
http://www.medicinenet.com/deep_vein_thrombosis/article.htm This could have led to a
http://www.medicinenet.com/pulmonary_embolism/page2.htm#tocc">pulmonary embolism
However, we won't know until they've carried out the second post mortem that's going to be carried out, as mentioned here:
http://www.timesonline.co.uk/tol/news/uk/crime/article6060976.eceThere's also this to consider:
Officer could face manslaughter charge Former deputy assistant commissioner calls for independent inquiry into death of newspaper vendor after police attack
GuardianVikram Dodd
April 2009 13.31 BST
Brian Paddick, a former top Scotland Yard officer, today demanded that police should be removed from investigating the death of Ian Tomlinson at last week's G20 protests, and said any officer who struck the innocent passerby could face a manslaughter charge.
But video footage obtained by The Guardian of the minutes before Tomlinson's death clearly shows officers from the City of London force in close proximity to the newspaper seller when he was struck. Paddick, a former deputy assistant commissioner of the Metropolitan police, said these officers from the City of London force would be key witnesses in the investigation.
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Paddick told the Guardian: "How can the City of London do the investigation independently? I'm sorry but there are three City of London officers in that video, how can they do the investigation? It certainly needs to be a full-blown criminal investigation ... whether there is a provable link between the death and assault, because an assault is a criminal offence. Police are allowed to use force, provided it is justified."
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Paddick refused to comment on whether the police actions in the video were justified, but said the officer seen striking Tomlinson could potentially face a charge of manslaughter, for which the maximum penalty is life imprisonment: "If it is held that there is a link between the violence he was inflicting and the heart attack , that then is an assault, resulting in death, albeit unintended. If a court held it is an assault, it is an unlawful action resulting in manslaughter."
Full article:
http://www.guardian.co.uk/world/2009/apr/08/tomlinson-g20-protests