 Rousseau later tells the survivors of Oceanic 815 that two months after their arrival , that the island natives , which she called the Others , carried a disease that the rest of her crew had contracted . She believed that this disease could not be allowed to reach the rest of the world , so she killed her colleagues , including her husband Robert . When Jin time @-@ travels to the past , he witnesses a different version of Rousseau 's past . It is shown that the Smoke Monster , not the Others , was responsible for the " sickness " that forced her to kill her crew . Rousseau confronts the father of her child , Robert , at gunpoint and accuses him of " being changed " inside the temple . Robert denies this , explaining that the Monster is a security system for the temple , and convinces Rousseau to lower her weapon . He attempts to shoot her when she does , but is shot by Rousseau . Rousseau also attempts to kill Jin , having witnessed him vanish moments after her team entered the Smoke Monster 's lair , believing he has the disease . 
