Rabbi Yerachmiel Binyomin Halevi Klein, who discreetly served as a longtime personal aide to the Lubavitcher Rebbe—Rabbi Menachem M. Schneerson, of righteous memory—and as a liaison to Israeli political, social and security leadership, will long be remembered as a person who touched thousands with his humility and kindness.

Here, we've collected some tributes to this gentle chassid, as well as some of the few vignettes he shared about the decades he served the Rebbe.