▁an ▁' employee ' ▁of ▁Lew ▁M ox on ' s , ▁told ▁Dr . ▁Wayne ▁that ▁a ▁man ' s ▁life ▁was ▁in ▁danger . ▁Dr . ▁Wayne ▁made ▁Ber rett i ▁promise ▁his ▁safe ▁return ▁before ▁depart ing . ▁Dr . ▁Wayne ▁was ▁informed ▁that ▁Lew ▁M ox on ' s ▁nep hew ▁required ▁a ▁bullet ▁to ▁be ▁removed ▁from ▁his ▁shoulder ▁( follow ing ▁a ▁failed ▁armed ▁rob ber y ). ▁Dr . ▁Wayne ▁performed ▁the ▁operation , ▁but ▁refused ▁to ▁take ▁any ▁money , ▁and ▁started ▁a ▁fight ▁with ▁Lew ▁M ox on . ▁Following ▁this , ▁Lew ▁M ox on ▁had ▁ordered ▁the ▁murder ▁of ▁Thomas ▁Wayne . ▁However , ▁this ▁was ▁not ▁carried ▁out ▁because ▁of ▁Ber rett i ' s ▁promise . ▁ ▁Years ▁later , ▁Bat man ▁questions ▁Ang elo ▁Ber rett i ▁as ▁to ▁whether ▁Lew ▁M ox on ▁had ▁been ▁involved ▁in ▁the ▁murder ▁of ▁the ▁Way nes ▁( which ▁occurred ▁a ▁few ▁months ▁after ▁the ▁cost ume ▁party ). ▁According ▁to ▁Ber rett i , ▁Lew ▁M ox on ▁was ▁not ▁involved . ▁After ▁Bat man ▁accepts ▁Ber rett i ' s ▁word ▁and ▁dep arts , ▁Ber rett i ▁holds ▁his ▁hand ▁to ▁his ▁face ▁and ▁ut ters ▁an ▁ambigu ous ▁" Oh , ▁thank ▁God ". ▁Lew ▁M ox on ' s ▁invol vement ▁in ▁the ▁killing ▁of ▁the ▁Wayne ▁is , ▁therefore , ▁left ▁to ▁the ▁reader ' s ▁imagination . ▁ ▁Lew ▁M ox on ▁( al ong