JERUSALEM (JTA) — Rabbi Moshe Twersky has been identified as one of the four people killed in a Jerusalem synagogue during morning services.

Twersky, 60, was the son of rabbi and author Rabbi Yitzhak Twersky of Boston, grandson of Rabbi Joseph B. Soloveitchik, a founder of Modern Orthodoxy known as The Rav.

He was the dean of the Torat Moshe Yeshiva, an advanced level English-speaking yeshiva, attended mostly by post-high school students from English-speaking countries.

He is the first victim to be identified in the Tuesday morning attack on the Bnei Torah Kehillat Yaakov synagogue in the western Jerusalem neighborhood of Har Nof. At least eight worshippers also were injured, some seriously, including two police officers who engaged in a shootout with the assailants, who were killed at the scene,