▁began ▁with ▁the ▁T 4 ▁leadership ▁brought ▁in ▁from ▁Germany ▁under ▁the ▁gu ise ▁of ▁Organisation ▁Tod t ▁( OT ). ▁ ▁Exper ience ▁in ▁the ▁A ktion ▁T 4 ▁e uth anas ia ▁program ▁ ▁The ▁three ▁command ants ▁of ▁the ▁camp ▁including ▁K riminal pol ize i ▁officers ▁SS - St ur mb ann führ er ▁Christian ▁W irth ▁and ▁SS - H aupt st urm führ er ▁Gott lie b ▁Her ing , ▁had ▁been ▁involved ▁in ▁the ▁forced ▁e uth anas ia ▁program ▁since ▁ 1 9 4 0 ▁in ▁common ▁with ▁almost ▁all ▁of ▁their ▁German ▁staff ▁there after . ▁W irth ▁had ▁the ▁leading ▁position ▁as ▁the ▁super visor ▁of ▁six ▁ex termin ation ▁hosp it als ▁in ▁the ▁Reich ; ▁Her ing ▁was ▁the ▁non - med ical ▁chief ▁of ▁the ▁S onnen stein ▁g ass ing ▁facility ▁in ▁Sax ony ▁as ▁well ▁as ▁at ▁the ▁Had amar ▁E uth anas ia ▁Centre . ▁Christian ▁W irth ▁had ▁been ▁a ▁killing ▁expert ▁from ▁the ▁beginning ▁as ▁particip ant ▁of ▁the ▁first ▁T - 4 ▁g ass ing ▁of ▁hand ic apped ▁people ▁at ▁the ▁Brandenburg ▁E uth anas ia ▁Centre . ▁He ▁was , ▁therefore , ▁an ▁obvious ▁choice ▁to ▁be ▁the ▁first ▁command ant ▁of ▁the ▁first ▁station ary ▁ex termin ation ▁camp ▁of ▁Operation ▁Rein hard ▁in ▁the ▁General ▁Government . ▁It ▁was ▁his ▁proposal ▁to ▁use ▁the ▁exhaust ▁gas ▁em itted ▁by ▁the ▁internal - comb ust ion ▁engine ▁of ▁a ▁motor car