▁Oct ag ón , ▁remained ▁with ▁A AA ▁for ▁years , ▁becoming ▁one ▁of ▁their ▁key ▁players ▁and ▁tra dem ark ▁wrest lers , ▁and ▁working ▁opposite ▁several ▁" ev il ▁cl ones " ▁known ▁as ▁Pent ag ón , ▁an ▁event ▁that ▁spawn ed ▁a ▁story line ▁successor , ▁Oct ag ón ▁Jr . ▁Oct ag ón ▁left ▁A AA ▁in ▁ 2 0 1 4 . ▁ ▁The ▁fight ▁between ▁Jerry ▁E str ada ▁and ▁La ▁Park a ▁at ▁the ▁end ▁of ▁their ▁When ▁World s ▁Col lide ▁match ▁led ▁to ▁La ▁Park a ▁turning ▁full - f led ged ▁tec nico , ▁quickly ▁becoming ▁a ▁popular ▁fan ▁favorite . ▁E str ada ▁ended ▁up ▁winning ▁the ▁Mexican ▁National ▁Light ▁He avy weight ▁Championship ▁on ▁March ▁ 2 8 , ▁ 1 9 9 5 . ▁One ▁hundred ▁and ▁thirty - one ▁days ▁later , ▁La ▁Park a ▁rec laimed ▁the ▁championship ▁as ▁their ▁story line ▁continued ▁to ▁evol ve . ▁In ▁ 1 9 9 6 , ▁La ▁Park a ▁was ▁one ▁of ▁many ▁A AA ▁wrest lers ▁who ▁also ▁began ▁working ▁for ▁W C W ▁on ▁a ▁regular ▁basis ▁and ▁eventually ▁left ▁A AA . ▁With ▁the ▁La ▁Park a ▁character ▁being ▁so ▁popular , ▁Pe ña ▁decided ▁to ▁replace ▁the ▁man ▁under ▁the ▁mask ▁with ▁a ▁New ▁La ▁Park a ▁and ▁forced ▁the ▁original ▁to ▁change ▁his ▁name ▁to ▁" L . A . ▁Park ", ▁as ▁A AA ▁owned ▁the ▁tra dem ark ▁for ▁the ▁name .