You are jumping right into the conspiratorial path of anyone who staged this by assuming the child is alive. (This is the nature of Deception, btw)
The question is did the father murder his family, or let them be killed, for political or financial gain?
The father is still alive; focus your questions on his statements.
Is the whole thing staged to increase muslim infiltration into europe?
If the kid ain't dead then the father engaged in deception for political or financial gain.