Steve Almasy had been detained for 1967 when he died . Israeli president says Israelis killed him . Palestinian officials say he had previous injuries , call for calm . Prisoners have launched hunger strikes in the past in hopes of bringing attention to their cause and pushing Israel to ease conditions or allow some prisoners to leave . Palestinian Authority calls for transparent investigation into death .
Steve Almasy had been detained for 1967 when he died . Israeli president says Israelis killed him . Palestinian officials say he had previous injuries , call for calm . Palestinian Authority calls for transparent investigation into death .