I had ABC on when I read this thread. 20/20 started an had a lengthy bit with Pearl's wife. They have a couple of kids (she gave birth recently through induced labor since it would be very awkward if she needed to get to the hospital at 3AM).
Also said that Pearl met his wife while both were attending a Christian university.
No mention that he was beheaded.
Earlier on the news I heard them say that she was pregnant with the couples first child.