▁as ▁the ▁Mar itime ▁College ▁cad res ▁task ed ▁with ▁protect ing ▁the ▁broadcast ▁building . ▁Many ▁of ▁these ▁gu ards , ▁however , ▁chose ▁to ▁abandon ▁their ▁posts , ▁claim ing ▁a ▁lack ▁of ▁effective ▁leadership ▁and ▁tang ible ▁results ▁as ▁their ▁reason . ▁To ▁facil itate ▁the ▁security ▁of ▁the ▁Head quarters ▁itself , ▁the ▁student ▁leaders ▁only ▁issued ▁identification ▁passes ▁and ▁established ▁a ▁double ▁line ▁of ▁student ▁gu ards . ▁The ▁limited ▁effect iveness ▁of ▁these ▁security ▁measures ▁was ▁demonstrated ▁when , ▁on ▁the ▁morning ▁of ▁June ▁ 1 , ▁Ch ai ▁L ing ▁and ▁F eng ▁Cong de ▁fell ▁victim ▁to ▁an ▁attempted ▁kid n apping ▁by ▁Wu ▁La i , ▁in ▁which ▁Head quarters ▁gu ards ▁took ▁an ▁hour ▁to ▁arrive ▁at ▁the ▁scene . ▁The ▁kid n apping ▁was ▁halt ed , ▁however , ▁once ▁Li ▁Lu ▁confront ed ▁Wu , ▁where up on ▁Wu ▁fled . ▁Consider ing ▁Ch ai ’ s ▁Mand arin ▁version , ▁security ▁lines ▁were ▁only ▁established ▁around ▁the ▁Head quarters ▁and ▁its ▁associated ▁structures ▁with ▁leaders , ▁not ▁around ▁the ▁entire ty ▁of ▁the ▁square ▁with ▁the ▁masses . ▁The ▁student ▁leaders ▁also ▁expressed ▁limited ▁confidence ▁in ▁their ▁security ▁system . ▁Following ▁May ▁ 3 0 , ▁student ▁leaders ▁fully ▁expected ▁the ▁P LA ▁to ▁break ▁their ▁security ▁lines ▁in ▁the ▁near ▁future , ▁int ending ▁to ▁arrest ▁and ▁kill ▁some ▁of ▁them . ▁The ▁first ▁half ▁of ▁this ▁belief ▁would ▁come ▁true , ▁but ▁the ▁gu ards ▁performed ▁their ▁intended