With Mohamed Merah now buried in Toulouse, French authorities are now turning their attention to the investigation.
Merah's brother has been handed preliminary charges of alleged complicity in preparing the killings, though his lawyer insists he is innocent.
Abdelkader Merah told investigators that a third man helped the brothers steal a motorbike used later in the killings, two police officials said today.
Merah did not give the name of the other man.
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The announcement came a day after a famine was declared in two areas of South Sudan following three years of civil war and severe inflation.
It is unclear what their alleged plans were.
Anti-terror police are currently questioning the men who were arrested at three separate locations in France.