...Luke did what he could, I have to believe that. I can't imagine him doing otherwise.
[Because they trust Luke, and Luke knows about this kind of thing, she assumes. And Luke is her brother and she loves him and she knows Ben would have loved Luke and vice versa.]
no subject
[Because they trust Luke, and Luke knows about this kind of thing, she assumes. And Luke is her brother and she loves him and she knows Ben would have loved Luke and vice versa.]