▁where ▁he ▁was ▁commission ed ▁through ▁the ▁R OT C ▁in ▁ 1 9 8 7 . ▁ ▁Van Her ck ▁was ▁born ▁in ▁Murray , ▁Kentucky ▁and ▁raised ▁in ▁B ism ar ck , ▁Missouri . ▁ ▁References ▁ ▁Category : L iving ▁people ▁Category : 1 9 6 2 ▁birth s ▁Category : Un ited ▁States ▁Air ▁Force ▁gener als <0x0A> </s> ▁Tre vor ▁W itt man ▁( born ▁March ▁ 5 , ▁ 1 9 7 4 ▁in ▁Den ver , ▁Colorado ) ▁is ▁an ▁American ▁box ing ▁and ▁M MA ▁tra iner . ▁ ▁Training ▁career ▁Comp elled ▁to ▁ret ire ▁from ▁box ing ▁after ▁being ▁diagn osed ▁with ▁a ▁hyper infl ated ▁lung , ▁W itt man ▁transition ed ▁to ▁training ▁box ers ▁in ▁the ▁Den ver ▁metropol itan ▁area . ▁He ▁founded ▁T ' s ▁K . O . ▁Fight ▁Club ▁in ▁Whe at ▁R idge , ▁Colorado ▁in ▁March ▁ 1 9 9 8 . ▁The ▁business ▁bro aden ed ▁its ▁scope ▁to ▁include ▁other ▁combat ▁sports ▁such ▁as ▁mixed ▁mart ial ▁arts , ▁eventually ▁resulting ▁in ▁W itt man ▁closing ▁T ' s ▁K . O . ▁Fight ▁Club ▁and ▁establish ing ▁the ▁Gr ud ge ▁Training ▁Center ▁facility ▁in ▁Whe at ▁R idge ▁in ▁ 2 0 0 9 . ▁Gr ud ge ▁re located ▁to ▁Ar v ada , ▁Colorado ▁in ▁ 2 0 1 3 . ▁Having ▁developed ▁experience ▁working ▁with ▁and ▁making ▁training ▁equipment ▁for ▁f igh ters , ▁in ▁