Talia was just looking over for a brief moment in time before she was looking back at the female, who still seemed very unsure at that point in time. Although it wasn't long before Carlos and Talia were hearing her story about what had happened, it being obvious that the female didn't even realizing that she was speaking at all. But this would confirm to Carlos that she was in fact Alryn's sister, and it did confirm that he was in fact dead - that he had been murdered almost ten years ago now.