▁and ▁also ▁d rank ▁alco hol ▁heavily . ▁He ▁most ▁likely ▁suffered ▁brain ▁tra uma ▁from ▁the ▁crashes ▁in ▁Texas ▁and ▁Indian apolis . ▁ ▁Y ar br ough ▁was ▁committed ▁to ▁the ▁Florida ▁State ▁Hospital ▁at ▁Ch att ahoo che e ▁by ▁Judge ▁Hudson ▁Ol iff ▁of ▁Jackson ville ▁on ▁March ▁ 7 , ▁ 1 9 8 0 , ▁after ▁he ▁was ▁tried ▁for ▁attempted ▁first - deg ree ▁murder ▁of ▁his ▁mother ▁and ▁battery ▁to ▁a ▁law - en for cement ▁officer . ▁His ▁mother , ▁Minn ie ▁Y ar br ough , ▁test ified ▁that ▁he ▁had ▁walked ▁up ▁to ▁her ▁and ▁started ▁str ang ling ▁her ▁for ▁no ▁reason . ▁Judge ▁Ol iff ▁ruled ▁that ▁Mr . ▁Y ar br ough ▁was ▁not ▁guilty ▁of ▁attempted ▁murder ▁because ▁he ▁was ▁unable ▁to ▁distinguish ▁right ▁from ▁wrong ▁at ▁the ▁time ▁of ▁the ▁incident . ▁ ▁Death ▁While ▁in ▁the ▁hospital ▁on ▁December ▁ 6 , ▁ 1 9 8 4 ▁Y ar br ough ▁had ▁a ▁violent ▁se iz ure ▁and ▁fell ▁over ▁striking ▁his ▁head . ▁He ▁fell ▁un cons cious ▁immediately . ▁He ▁was ▁r ushed ▁to ▁Jackson ville ' s ▁University ▁Hospital ▁where ▁he ▁died ▁the ▁morning ▁of ▁December ▁ 7 , ▁ 1 9 8 4 . ▁The ▁do ctors ▁said ▁he ▁died ▁of ▁internal ▁ble eding ▁in ▁the ▁brain . ▁ ▁Mot ors ports ▁career ▁results ▁ ▁Indian apolis ▁ 5 0 0 ▁results ▁ ▁Day ton a ▁ 5 0 0 ▁results ▁