Personally I do not believe that even this small deranged Jewish community in Italy would have "practiced ritual child-murders as a rule", if at all, in order to bake matzos with their blood, but without denying the humane element in us Jews, also a Jew can go haywire. In a crazy-making environment, I think it is rather exceptional to maintain one's sanity and keep high moral standards. To demand that of any human being is, in my opinion, unreasonable and shows an unthinking attitude.
ISIS kills 22 in Yemen's Sanaa, Aden; targets both gov't and Houthi rebels (Reuters)
from the article: And supposing they did drink blood?