▁van ▁Vol len h oven ▁as ▁well ▁as ▁ 1 , 2 0 0 ▁guests . ▁Some ▁ 5 , 0 0 0 ▁people ▁watched ▁the ▁ceremony ▁on ▁screens ▁placed ▁outside ▁on ▁Ap el do orn ' s ▁central ▁market ▁square ▁and ▁millions ▁more ▁on ▁live ▁television . ▁H ours ▁after ▁the ▁mem orial , ▁it ▁was ▁announced ▁that ▁after ▁being ▁in ▁critical ▁condition ▁for ▁over ▁a ▁week , ▁an ▁e ighth ▁person ▁had ▁died ▁of ▁inj uries ▁sust ained ▁in ▁the ▁attack . ▁ ▁Monument ▁On ▁ 2 9 ▁April ▁ 2 0 1 0 , ▁Queen ▁Beat rix ▁and ▁Mayor ▁De ▁Gra af ▁un ve iled ▁a ▁monument ▁for ▁the ▁seven ▁vict ims , ▁near ▁the ▁location ▁of ▁the ▁attack . ▁The ▁work ▁by ▁artist ▁ ▁res emb les ▁a ▁box ▁containing ▁seven ▁white ▁bal lo ons ▁among ▁several ▁blue ▁bal lo ons , ▁representing ▁vulner ability , ▁fest ivity ▁and ▁m our ning . ▁▁ 2 0 1 0 ▁bomb ▁pan ic ▁Just ▁over ▁a ▁year ▁after ▁the ▁attack , ▁on ▁ 4 ▁May ▁ 2 0 1 0 , ▁during ▁Rem emb rance ▁of ▁the ▁Dead ▁ceremony ▁on ▁Dam ▁Square ▁in ▁Amsterdam ▁attended ▁by ▁Queen ▁Beat rix , ▁a ▁ 3 9 - year - old ▁man ▁dressed ▁as ▁an ▁Orth odox ▁Jew ▁and ▁carrying ▁a ▁suit case ▁shout ed ▁" B omb !" ▁during ▁a ▁two - min ute ▁silence . ▁This ▁was ▁followed ▁by ▁the ▁y ell ▁of ▁a ▁woman ▁and ▁a ▁falling ▁security ▁f ence ,