Alarm has been raised over the execution of a Palestinian man in Gaza City, in an incident described as “harrowing” by human rights groups. The Palestinian man was reportedly shot in the back by an Israeli sniper, the Euro-Med rights monitor said, as he searched for food, amid Israel’s military onslaught and siege which has killed over 27,300 people. The monitor said the incident bears a resemblance to a number of executions carried out by Israeli snipers from rooftops in Gaza, as part of Tel Aviv’s atrocities against Palestinian civilians in the Strip. In an image shared online, bullet holes …