When the unfaithfulness of the wife became known, they quarelled.

The guy killed his wife.

Their 5-year-old kid was still sleeping and the neighbors never did find out.

So it was a perfect crime.

The kid didn't notice his mother was missing even after a day or two passed.

So the father talked to his son, "Do you have anything to ask me?"

The kid said, "Nothing. It's just that...

How come Mom is always is always at your back?"