"In terms of the (gunshot) wounds, what was found in relation to Thomas Sankara's body is really mind-boggling. You could say he was purely and simply riddled with bullets," Ambroise Farama, one of the lawyers representing Sankara's family, told reporters.
Nearly three decades after his death a set of remains believed to be those of Sankara and 12 colleagues were exhumed from a cemetery in the capital Ouagadougou in May as part of an investigation into their deaths
The lawyer said the position of the bullet holes showed he had " most probably raised his arms".
There were bullet holes "everywhere, in the chest, the legs, everywhere," he added.
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Farama stressed the family was still waiting for the results of DNA tests to confirm the body was that of the former army captain dubbed Africa's "Che Guevara", but said "there is every reason to believe" this was the case.
His family had to wait until Compaore's ouster in a popular uprising last year for their requests for an investigation into the revolutionary leader's death to get the official nod.
At least eight people, some of them soldiers who took part in a failed September coup by Compaore loyalists, have already been charged over his assassination, another of the family's lawyers revealed.
"Eight or nine people have been charged", said lawyer Benewende Stanislas Sankara (no relation to the late president), adding they included "soldiers from the ex-RSP".