After the assassination, Cohen was one of the founders of the Sde Boker kibbutz, established in 1952. The kibbutz later became home to David Ben-Gurion, the former Prime Minister of Israel, in 1956. At Sde Boker, Cohen became Ben-Gurion's unofficial bodyguard and confidant, and the two grew very close.Marton (1994), p. 253. According to a New York Times article from 1964, Cohen became Ben-Gurion's "closest companion." Cohen also served as the head of security at Sde Boker. Cohen was married and had two children, a son and daughter.
