https://www.mappingthelives.org/bio/18f289d8-1bfe-41fd-8c9f-30ab04233bc5
He died in 1959 (with picture):
Horst Otto Karl „Charles“ Freitag, b.1923 d.1959 - Ancestry®
Horst Otto Karl Freitag : généalogie par Wolfgang SAGER (wosahh) - Geneanet