This photo taken on March 18, 2010 shows a foreign peace activist Vittorio Arrigoni as he takes part in a protest against an Israeli decision to tighten the border area in Khan Yunis, south of the blockaded strip.    Vittorio Arrigoni was found dead early on April 15 morning, after a Salafist group posted a video of him online and threatened to kill him unless an unspecified number of their members were released by Gaza rulers Hamas. His kidnappers identified themselves as belonging to a previously unknown group called The Brigade of the Gallant Companion of the Prophet Mohammed bin Muslima. The pro-Palestinian International Solidarity Movement said on today they were disraught at news that an Italian member had been found murdered in the Gaza Strip.  AFP PHOTO/ SAID KHATIB (Photo credit should read SAID KHATIB/AFP/Getty Images)