Getty Images Visitors pray at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)

Getty Images Visitors pray at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)

Getty Images Visitors pray at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)

Getty Images A visitor prays at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)

Getty Images Visitors pray at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)

Getty Images Visitors pray at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)

Getty Images Visitors pray at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)

Getty Images Visitors pray at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)

Getty Images A visitor prays at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)

Getty Images NEW YORK, NY - JUNE 30: Visitors pray at the gravesite of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson June 30, 2014 at the Old Montefiore Cemetery in the Queens borough of New York. (Photo by Eric Thayer/Getty Images)