Zac Winkler is a Canadian who attended TanenbaumCHAT, a private Jewish high school, and graduated in 2019. A 2021 newsletter from the school states that he “just completed training, and has officially joined the Shiryon, the Armored Corps division of the Israel Defense Force serving as a ‘lone soldier.’” A March 2022 Twitter post from Yeshivat HaKotel states that Winkler received an “award of excellence” from his military unit.