Show sub data items (comments) from the details page

I’m wondering how you would handle this. I have a list of “Locations” based on your current location so I get json data from my API. You then click into one of the “Locations” and I go out and get that location specific data from the API.

I now have that JSON data and want to show the comments, videos and photos as sub pages but I don’t want to go out to my API again. Is there a way to capture the sub sections and pass them to the (CommentsCtrl, VideoCtrl, PhotoCtrl) etc.

How would you handle this type of scenario?