He probably didn't. According to Staatsarchiv Hamburg, he committed suicide on 11.05.1945 in Karlsbad (to quote the archival description: "Am 11.05.1945 in Karlsbad verstorben. Suizid"). Some years after (probably in 1949) a Todeserklärung was issued by the Amtsgericht Altona. The fact that the description of this archival item states "Enthält u.a.: Schüsseler, geb. Schubert, Alexandra, geb. 03.11.1884.- Schüsseler, Jutta, geb. 08.04.1909" gives the impression that the family committed collective suicide, as Albert wrote.
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