Footage of Mohammed Merah's shooting attacks in Toulouse has been obtained by the Paris branch of Arabic-language satellite news channel Al Jazeera.
The channel gave the memory stick, said to contain two clips of up to 25 minutes of video footage, to investigators on the case.
Al Jazeera's Zied Tarrouche said that the channel had kept a copy, but had not yet made a decision about whether to broadcast any of the footage.
Even before the stand-off began between gunman Merah and the French police, which ended in Merah's death 32 hours later, police said they believed he had filmed the killings. Before he died Merah admitted to the murders of four people outside a Jewish school in Toulouse, as well as three paratroopers. His brother has been arrested although police are thought to be looking for a third accomplice.
