This is a very good interview by Katie Couric of Yahoo News of James Foley's sister and brother. Katie brings up the fact that Pope Francis called the family yesterday and mentions that their Catholic Faith is very important to the family and to James. Pope Francis called Jim a martyr.
There is a bit of a startle at the beginning of the interview when a picture falls from the wall. The Italian in me tells me that Jim might have been playing a prank to break the grief.