BERLIN (AP) — Eight suspected members of an online pedophile network have been arrested in what German police described Thursday as one of the most serious child sexual abuse cases they've ever investigated. Police in the southwestern city of Freiburg said those arrested included a 47-year-old German woman suspected of letting others rape her own son in exchange for payment between 2015 and 2017. The woman and her 37-year-old partner are also accused of abusing the child themselves.