And even if they would know, due to the distance and general relativity, there is no concept of one of the two persons looking first. It could be that from Alic

And even if they would know, due to the distance and general relativity, there is no concept of one of the two persons looking first. It could be that from Alice's point of view Bob looked later, while from Bob's point of view Alice looked later. So, in which direction did the information go?