The "SS Sonderkommando Sobibor" presided over which numbered Euthanasia Program?
Sobibór Museum:  The camp was run by the "SS Sonderkommando Sobibor" headed by Franz Stangl. Franz Stangl: Franz Paul Stangl (26 March 1908 – 28 June 1971) was an Austrian-born police officer, who became an employee of the T-4 Euthanasia Program and an SS commander in Nazi Germany.
T-4 Euthanasia Program