after world war ii, radomsker hasidim and keser torah yeshiva students who had survived the holocaust founded kollel keser torah in bnei brak, israel. in 1965 they asked rabbi menachem shlomo bornsztain, son of the sochatchover rebbe and a nephew of rabbi david moshe rabinowicz, to head the kollel. bornsztain, who became known as the sochatchover-radomsker rebbe, died in an automobile accident in 1969. after bornsztain's death, his eldest son, rabbi shmuel bornsztain, assumed the leadership of kollel keser torah.