I agree with you - that pic of the dead child on the beach was pure manipulation and propaganda. No real story - just emotive images to tug our hearts.
In this case, it has got more complicated now that this man would seem to be guilty of at least 2 crimes - the earlier boy, who was German, and now the refugee child. I am heartily glad that the German police have nabbed him.
Men killing boys is a sure sign of previous molestation by a pervert.