▁and ▁resulted ▁in ▁a ▁re vised ▁and ▁expanded ▁second ▁edition ▁published ▁in ▁March ▁ 2 0 1 3 . ▁The ▁second ▁edition ▁is ▁dedicated ▁to ▁former ▁Texas ▁Supreme ▁Court ▁Justice ▁Ted ▁Z . ▁Robert son . ▁ ▁Christ ena ▁Steph ens ▁of ▁the ▁L l ano ▁Est ac ado ▁Heritage ▁Foundation ▁is ▁also ▁writing ▁a ▁book ▁on ▁the ▁H unt ▁case . ▁At ▁a ▁time ▁when ▁for ens ic ▁science ▁was ▁hardly ▁known ▁in ▁Texas , ▁Steph ens ▁has ▁un cover ed ▁cl ues ▁to ▁solving ▁the ▁case , ▁including ▁t ire ▁tracks ▁and ▁black ▁tennis ▁sho es . ▁▁ 1 9 7 3 ▁Train ▁Acc ident ▁ ▁On ▁February ▁ 6 , ▁ 1 9 7 3 , ▁ 7 ▁children ▁were ▁killed ▁and ▁ 1 6 ▁children ▁were ▁hospital ized ▁when ▁a ▁school ▁bus ▁was ▁struck ▁by ▁a ▁moving ▁Santa ▁Fe ▁fre ight ▁train . ▁The ▁bus ▁was ▁struck ▁on ▁the ▁rail road ▁street ▁intersection ▁on ▁what ▁is ▁now ▁N ▁East side ▁A ve . ▁The ▁accident ▁occurred ▁a ▁little ▁after ▁ 4 : 0 0 ▁pm , ▁with ▁death ▁certific ates ▁not ing ▁the ▁time ▁of ▁death ▁at ▁ 4 : 0 5 ▁pm . ▁Police ▁investigation ▁determined ▁that ▁the ▁train ▁was ▁trav elling ▁east bound ▁at ▁ 5 8   m ph ▁when ▁it ▁struck ▁the ▁rear ▁half ▁of ▁the ▁north bound ▁bus , ▁causing ▁inj uries ▁or ▁death ▁to ▁all ▁ 2 3 ▁children ▁in ▁the ▁bus ▁and ▁inj uring ▁the ▁driver , ▁ 6 8 ▁year -