Son of Hanna and Yaakov. Born in 1905 in the city of Warta, Poland, his father was well versed in Shas and known as an avid Zionist enthusiast. At the age of five, he was orphaned from his father and mother, taken to his uncle’s house, where he knew suffering that had shaped him as a silent, self-contained and aggressive young man. Later he worked with his other cousins in the bakery and in 1923 immigrated with them to Eretz Israel. They settled in Haifa and opened a bakery in the city. Avraham-Yitzhak joined the General Federation of Labor, where he worked to improve the working conditions of the worker and joined the Haganah. In everything he did, his determination, his determination, his determination and his determination to build the country and to develop Haifa were very enthusiastic. During the bloody riots of Av 1929 he took an active part in the defense against the rioters. He fortified his house as a fortress, opened only openings in the bricks, and made sure to prepare boiling water and oil in a timely manner. On 20 Av, August 26, 1929, he went with his cousins to look from the roof of the house to the surroundings. A bullet hit his head and he died that day in the hospital. He was laid to rest in the Haifa cemetery. His memory was commemorated in the book Yizkor for the fallen of 1929 and in the memorial album War and Peace in the Land of Israel.