After some lecture of Alexander Horns descriptions of the investigations against MN i can at least confirm that after trying to blackmail another peado, police confiscated hardware of MN, that contained footage of boys that had been buried into sand, next to child




images. Unfortuneatly i didn't find more info about, but i didn't read everything in that short time either. I will look further on that topic.
The other interesting thing is, that the Nicky V. and Jonathan C. cases had been linked to MN very early. In the Jonathan C. case the french prosecuters ruled him out, because the coroner came to the conclusion, that the poor boy could have been alive for weeks after he was abducted. So they ruled out a cross-border perp.
In 2008, an assessment of swiss specialists came to the conclusion, that the boy has been murdered very soon after his abduction, probably in the same night. In his book from 2014 Horn is still convinced about a link to MN, because of the absolutely unique modus operandi, MN used to apply. A modus operandi, that still fits the Nicky V. case, although we know about Jos B., who didn't really confessed, AFAIK.
Another interesting, research-based info in the book about abducted and murdered children:
74 % of all children being abducted and murdered according to sexual motives are losing their poor little lives in the following 4 hours after the abduction.
99 % between the following 24 hours...
Supplement: Due to the perps profile, the prosecuters had been aware of the possibility, that the "masked man" had or will kill a child in periods of three years each!