French police have launched a nationwide manhunt for a possible serial killer whose shootings, they believe, may be racially-motivated.br br The coffins of the latest victims, three children and a Rabbi, are being taken to Israel for burial. They were shot at a Jewish school in Toulouse, in the south of France.br  br The French interior minister said the gunman had a camera strapped to his body during the latest attack.br  br Al Jazeera's Jacky Rowland reports.