That's some comfort, or karma. But she is also going to watch their life savings go down the drain, and worry about her old age and the humiliation of having to turn to her grown kids to take care of her when she's broke. No winners here.
She lost all sympathy I might have had for her by her shallow matter-of-fact response to him after he shot him.
She could have done something to calm him down or gotten up to move.
She knew that he carried that gun with him and into that theatre and that he was working himself up to use it.