Vandals have defaced the graves of Yitzhak and Leah Rabin in Israel’s most important cemetery on Mount Herzl. It was the fourth such incident in the last several days, the "Jerusalem Post" reports. Police have appointed a task force to catch the vandal who scrawled “murderous dog” on the tomb of Yitzhak Rabin, the Israeli prime minister assassinated in 1995. In another attack assumed to be from the same hand, the name of Rabin’s widow Leah was removed from her headstone. In a different section of Mount Herzl Military Cemetery, vandals spray-painted Hebrew letters on the graves of fallen soldiers to form the phrase: “Hitler – the brain.” It was not clear if security cameras mounted in the cemetery captured the attacks on film.