The number of victims in the Dolphinarium suicide slaughter of Friday night has now climbed to 20, with the death yesterday of Yan Blum, 25, a guard at the building. He immigrated to Israel from the Ukraine a year ago, and left a wife and a baby daughter. Two more funerals of victims of the slaughter were held today: Liana Sakian, 16, was buried in Kibbutz Givat Brenner, and Katarine Kastaniada, 15, was buried in the Catholic cemetery in Jaffa. Sixteen of the victims were aged 14-19, and eighteen of them were new immigrants from the former Soviet Union. A poll published in Yediot Acharonot today shows that, for the overwhelming majority of Russian immigrants, the events of the past few months have strengthened the ties they feel with Israel.