Answer:
Beginning on September 29, 1941 more than 33,000 Jews were marched in small groups to the Babi Yar ravine to the north of Kiev (Ukraine), ordered to strip naked, and then machine-gunned into the ravine by SD- Einsatzgruppe C, commanded by Dr. Dr. Otto Rasch. (He was called Dr. Dr. because he had two(!) doctorates).