 He lost consciousness on Shabbat afternoon, 25 June, and was rushed to Shaare Zedek Medical Center, where he died on Monday evening, 27 June (26 Sivan 5771).His Hebrew date of death was the 75th yahrtzeit of his father-in-law.An estimated 100,000 people attended his funeral in Bnei Brak on Tuesday morning, 28 June, including Gedolei Yisrael, rabbis, rebbes, roshei yeshiva, and thousands of Rabbi Lefkowitz's students from throughout the decades.