HLN's Nancy Grace tells father his missing child has been found in basement

On the air and live, HLN's Nancy Grace tells the father of a missing 12-year-old Detroit boy that his son has been found alive in the father's basement.

I find the father's reaction odd. If I truly thought my child was missing and found out he's alive, I think I'd jump up and run to where my child was. The father just sits there acting bewildered.

And Nancy Grace seems to be hinting at something nefarious, as if the father has done something...?

Just an odd exchange...