By Catarina Demony LISBON (Reuters) – Investigators have found new evidence potentially incriminating the key suspect in the disappearance of British toddler Madeleine McCann 15 years ago, said Hans Christian Wolters, the German prosecutor who has been investigating the case since 2020. In an interview with Portuguese TV channel CMTV on Tuesday, Wolters said detectives believed they had found “some facts, some new evidence”, adding: “We are sure that he (Brueckner) is the murderer of Madeleine McCann.” Convicted child abuser and drug trader Christian Brueckner, who is behind bars in Germany fo…