Italian human rights activist Vittorio Arriogoni (R) rides a boat during a protest at the Gaza Seaport against Israel's interception of Gaza-bound ships in the sea off the Gaza City shore on June 21, 2010. International Solidarity Movement member Vittorio Arrigoni, 36, was kidnapped on April 14 by a previously-unknown Salafist group who posted video outlining their demands online. Hours before the 30-hour deadline expired, he was found hanged in an abandoned house in northern Gaza. UPI/Ismael Mohamad