▁plan ▁to ▁escape ▁with ▁Laura , ▁destroy ▁the ▁Fac ility ' s ▁work , ▁and ▁start ▁over ▁with ▁her . ▁However , ▁thanks ▁to ▁Z ander ▁R ice ▁la cing ▁the ▁trigger ▁sc ent ▁on ▁her , ▁Sarah ▁was ▁killed ▁by ▁Laura . ▁With ▁her ▁dying ▁breath s , ▁Sarah ▁tells ▁" X - 2 3 " ▁her ▁name ▁is ▁Laura . ▁Sarah ' s ▁final ▁thoughts ▁were ▁left ▁in ▁a ▁letter ▁to ▁Laura ▁detail ing ▁her ▁gu ilt , ▁that ▁she ▁was ▁Laura ' s ▁mother , ▁and ▁the ▁real ization ▁that ▁she ▁had ▁come ▁to ▁love ▁her . ▁Sarah ' s ▁death ▁remains ▁to ▁this ▁day ▁the ▁life ▁that ▁Laura ▁reg rets ▁taking ▁the ▁most . ▁Iron ▁Man ' s ▁recent ▁research ▁confirmed ▁that ▁Sarah ▁is ▁actually ▁Laura ' s ▁bi ological ▁mother , ▁rather ▁than ▁just ▁being ▁a ▁sur rog ate . ▁W riter ▁Mar jor ie ▁Li u ▁has ▁stated ▁that ▁she ▁intended ▁for ▁Laura ▁to ▁be ▁part ▁Asian ▁through ▁her ▁mother . ▁ ▁Meg an ▁Kin ney ▁Laura ' s ▁cousin ▁on ▁her ▁mother ' s ▁side . ▁After ▁esc aping ▁from ▁the ▁Fac ility ▁Laura ▁moved ▁in ▁with ▁Sarah ' s ▁sister ▁Deb bie ▁and ▁her ▁daughter ▁Meg an . ▁For ▁a ▁time ▁the ▁two ▁connected ▁and ▁Meg an ▁even ▁admitted ▁to ▁Laura ▁being ▁her ▁best ▁friend . ▁However , ▁when ▁Fac ility ▁agents ▁came ▁to ▁take ▁Laura ▁back , ▁Laura ▁helped ▁them ▁escape ▁and ▁make ▁new ▁ident ities ▁so ▁that ▁they ▁could ▁hide . ▁Laura ▁and