The Ursula Herrmann kidnapping mystery
theguardian.com
theguardian.com
And, using the sound of a tape recorder to identify the guy? Really? That doesn't even pass the smell test for me.
I'm not 100% convinced he's not the culprit, but the case described in the article doesn't come close to "beyond a reasonable doubt", for me.
EDIT: apparently the brother made a website:
They didn't. They would have been searching for a shallow grave.
Thanks for linking the brother's website. I found his letter interesting, particularly this part towards the end:
> For me, there is increasing evidence suggesting the involvement of a group of people who have insofar only been rudimentarily looked at. A fresh look at the evidence and new methodology yielded very well founded suspicions against known individuals.