Yerachmiel was born 1918 in Warsaw Poland, to Dov Be’arish and Tsipora. He had two sisters, Sassona and Leah. A Beitar member, he made Aliyah February 1939 with a student visa. He began studying Construction Engineering at the Haifa Technion. He joined Etzel and when it split in 1940, moved to Lehi. While studying he earned a living at road construction. After Yair’s assassination 1942, he became responsible for the Haifa branch. In those days Lehi members were persecuted, arrested, and shot; links between cities were lost. Yerachmiel, known to his friends as ‘Milik’, travelled to Tel-Aviv, renewing the connection, and retrieved the last of Yair’s letters, to preserve, and save them. He was preparing the escape of Yitzhak Shamir and Eliahu Giladi from Mizra Prison Camp, and their transfer to Tel-Aviv in disguise. When the Underground expanded activities, Haifa became dangerous for Milik, who was transferred to Tel-Aviv. Systematically, with utmost dedication he began establishing a home-front support system: underground collaborators and supporters, willing to conceal wanted Lehi men, store weapons and donate funds. Milik was a well educated person, and fascinating conversationalist. Through his charisma he influenced many hearts . His position kept him travelling. He visited supporters regularly, supplying copies of the underground newspaper “Hachazit”. Labouring day and night, often without food, he operated enthusiastically. His exemplary behaviour was admired by his friends; they related to him as their guide. At this point, it was decided that Lehi members could not afford to be arrested and should carry weapons at all times. On March 19, 1944, as Milik was walking on Mazeh St. Tel-Aviv, he roused the suspicion of British policemen who ordered him to halt. He tried to escape but they pursued him, and a gunfire exchange ensued. Milik entered one of the houses and ran up to the roof. The policemen caught up with him and shot him dead. He was 26 at the time of his death. His parents and sister Sassona perished in the Warsaw Ghetto. Sister Leah arrived at Auschwitz and her traces were lost.