Keamy board the freighter Kahana in Suva , Fiji sometime between December 6 and December 10 . On the night of December 25 , helicopter pilot Frank Lapidus ( Jeff Fahey ) fly Keamy and his mercenary team , which consist of Omar ( Anthony Azizi ) , Lacour , Kocol , Redfern and Mayhew , to the island . On December 27 , the team ambush several islanders in the jungle , taking Ben 's daughter Alex Linus ( Tania Raymonde ) hostage and killing her boyfriend Karl ( Blake Bashoff ) and her mother Danielle Rousseau ( Mira Furlan ) . The team infiltrate the Barracks compound where Ben reside , blowing up the house of 815 survivor Claire Littleton ( Emilie de Ravin ) and fatally shooting three 815 survivors ( played by extras ) . Keamy attempt to negotiate for Ben 's surrender in exchange for the safe release of Alex . Believing that he is bluffing , Ben do not comply , and Keamy shoots Alex dead . Ben retaliate by summoning the island 's smoke monster , which brutally assault the mercenaries and fatally wound Mayhew .