@rush There is a connection: the place where Inga vanished belonged to a social project of a protestant social organization (think nursery homes, ambulant care, handicapped persons, child services) which acts nationwide, Diakonie. One of its employees working there at the time had according to police acted very suspiciously after Inga vanished, had a narcissistic personality and a "highly unconventional", abnormal sex life (probably not pedophilia as they'd likely named that) as they described it. They couldn't find evidence against this suspect person though. But it turns out he was friends with now-suspect Christian Brueckner and had been in contact with him before and after Inga vanished. There might also have been cellphone logs for Brueckner in the area at the time...