NEW YORK – When protests over the acquittal of a white police officer in the fatal shooting of a black man turned violent in St. Louis over the weekend, a local synagogue opened its doors for demonstrators fleeing police tear gas and rubber bullets.But shortly after the Central Reform Congregation synagogue emerged as a shelter for demonstrators, those opposed began calling on police to breach the sanctuary and began tweeting the hashtag #GasTheSynagogue accompanied by antisemitic and racist comments about the protesters and those giving them shelter. The hashtag began trending on social media, and many users expressed outrage.