The family of a US citizen who was killed during a raid by the Zionist troops in 2010 on a Gaza-bound flotilla are suing former Zionist prime minister Ehud Barak, claiming unlawful death and torture.

The family of a US citizen who was killed during a raid by the Zionist troops in 2010 on a Gaza-bound flotilla are suing former Zionist prime minister Ehud Barak, claiming unlawful death and torture.

Attorneys representing the Turkish family of Furkan Dogan told AFP that Barak was served papers in the civil case late Tuesday after giving a speech at an event near Los Angeles.

Dogan, a US citizen born in New York, was among nine people killed in the raid on six Turkish boats that had been attempting to break the Zionist blockade of Gaza.

"On board the Mavi Marmara, Israeli forces extinguished the life of a 19-year-old boy holding a video camera," said Hakan Camuz, a representative of Dogan's family.

"He was shot five times. The last shot was to his head at point blank range. He deserves justice."

A UN panel that reviewed the case determined that the raid was "excessive and unreasonable" but also laid blame on Turkey.

The human rights lawyers that filed the suit against Barak have also been pushing the Hague-based International Criminal Court to investigate the incident.

"From Nuremberg and Tokyo to the Balkans, Rwanda and Sierra Leone, there is a tradition around the world of holding military leaders accountable for their crimes against civilians," said attorney Rodney Dixon.

"Casting that tradition aside mocks justice and gives political and military leaders free reign to wield violence indiscriminately."