Please state how .
The man has history , he might or might not have bragged about certain things , he might have exhibited distress when others were discussing Madeleine but that doesn’t make it obvious he was in any way involved.in her disappearance .
Apparently he is a career criminal who was mobile in the Algarve but at the time was resident very close to 5A.
Apparently one of his sidelines was burglary at which he appears to have been very good.
Apparently he has convictions for child abuse - torture - and rape.
Apparently the German police have traced his phone in Luz on the night Madeleine was taken.
I've no idea why the German authorities consider him to be a prime suspect ... maybe the memory sticks buried under a dog ... or even a friend telling the police about film of torture and rape found on his premises ... who knows?
But keep up the good fight for the presumption of his innocence ... I'm sure he's worth your efforts on his behalf ... while bearing in mind the principle is applicable to all.