▁and ▁three - year - old ▁Mad eline ▁Mik ac ▁were ▁among ▁ 3 5 ▁people ▁killed ▁by ▁Martin ▁Bry ant ▁on ▁ 2 8 ▁April ▁ 1 9 9 6 . ▁ ▁In ▁the ▁subsequent ▁debate ▁surrounding ▁gun ▁politics ▁in ▁Australia , ▁Mik ac ▁became ▁a ▁prominent ▁advoc ate ▁for ▁tight ening ▁gun ▁laws . ▁ ▁Today , ▁Walter ▁works ▁as ▁a ▁motiv ational ▁speaker ▁and ▁is ▁the ▁author ▁of ▁a ▁book ▁called ▁To ▁Have ▁And ▁To ▁Hold . ▁He ▁has ▁also ▁written ▁a ▁book ▁called ▁The ▁Circle ▁of ▁Life : ▁Rep la cing ▁Hard ship ▁with ▁Love ▁about ▁dealing ▁with ▁gr ief ▁and ▁tra ged y ▁when ▁it ▁strik es . ▁ ▁He ▁was ▁also ▁a ▁co - found er ▁of ▁The ▁Al ann ah ▁and ▁Mad eline ▁Foundation , ▁which ▁was ▁set ▁up ▁in ▁their ▁memory ▁to ▁provide ▁support ▁for ▁children ▁who ▁are ▁the ▁vict ims ▁of ▁violent ▁crime . ▁Crown ▁Princess ▁Mary ▁of ▁Den mark ▁is ▁the ▁patron ▁of ▁the ▁Foundation . ▁In ▁ 2 0 0 0 , ▁he ▁married ▁sports ▁journalist ▁Kim ▁Sport on ▁in ▁a ▁private ▁ceremony ▁and ▁then ▁in ▁ 2 0 0 1 ▁they ▁had ▁a ▁daughter , ▁Isabel la . ▁Mik ac ▁and ▁Sport on ▁are ▁separated . ▁ ▁Mik ac ▁was ▁made ▁a ▁Member ▁of ▁the ▁Order ▁of ▁Australia ▁( AM ) ▁in ▁the ▁ 2 0 1 8 ▁Australia ▁Day ▁Hon ours ▁" For ▁significant ▁service ▁to ▁the ▁community ▁as ▁an ▁advoc ate ▁for ▁gun ▁control , ▁and ▁to ▁the ▁protection