I have no idea if what you posted is correct. I would hope Yaron was considering conversion before marrying Sarah. We can all agree assimilation and intermarriage is tragic. But at a time, when most young Jews deny or even loath their Jewishness, these two young people embraced it. Obviously they had a connection to the Jewish people, if not in the traditional sense, certainly in their national and personal identity. They may not have lived as observant Jews (or even been halachically Jewish) but they were murdered as Jews, and should be mourned. HY”D
