I've put this together - tell me if any of the names in
bold are incorrect in the investigation. I forgot to click on "Watch Thread" - and skipped a few pages....
Portugal - Madeleine McCann (3) (May 3, 2007, disappeared from hotel room while sleeping with her younger twin siblings, while parents ate at restaurant near the Mark Warner Ocean Summer Club in Praia da Luz; not found) - *Christian Brueckner (43) Suspect.
6/1/20 Update: The Metropolitan Police have not named the man who is described as white with short blond hair, possibly fair, and about 6 ft tall with a slim build. The 43-year-old drifter, who was living in a camper van close to where Maddie went missing, is considered a prime suspect in the case. According to the German Federal Criminal Police Office the suspect is a sex offender with multiple previous convictions. The suspect, who is in prison in Germany for an unrelated matter, has been linked to an early 1980s camper van - with a white upper body and yellow skirting, registered in Portugal - which was pictured in the Algarve in 2007. The day after Maddie went missing, the suspect got the car re-registered in Germany under someone else's name, although it is believed the vehicle was still in Portugal. He's 43 now. At the time he was 30, but he could have looked aged somewhere between 25 and 32.
6/7/20 Update: Christian Brueckner is facing investigations over the deaths or disappearance of at least three other children. Prosecutors in Belgium have confirmed they are investigating if he was connected to the murder of 16-year-old Carola Titze, whose body was found in sand dunes in De Haan, near Ostend, July 5, 1996. Rene Hasee was six when he went missing June 21, 1996 while on holiday in Aljezur, around 25 miles from Praia da Luz. Brueckner was living in the region at the time. Police in Germany are also investigating whether Brueckner was involved in the disappearance of five-year-old Inga Gehricke on May 2, 2015, after it emerged he had been nearby. Inge has not been found. In Portugal, police face pressure to re-examine the case of Joana Cipriano, eight, who disappeared in 2004 from Figueira, seven miles from Praia da Luz. Her mother and uncle allegedly confessed to her killing but her mother has since said she was forced to admit to the crime by police who beat her. Joana has never been found. German police are probing whether Brueckner was responsible for abducting Inga five years ago, and snatching and killing a nine-year-old girl almost two decades ago. The death of Peggy Knobloch, dubbed the "German Maddie" by British tabloids over the years, has been called Germany's most mysterious criminal case. The youngster vanished on her way home from school in May 2001 and her remains weren't discovered until July 2016, when mushroom pickers found human bones in a forest nine miles from Peggy's home in Lichtenberg, Bavaria. More info: Madeleine McCann suspect Christian Brueckner faces probes over FIVE child murder victims | Daily Mail Online
6/8/20 Update: The Portuguese police are on the trail of an ex-employee of the holiday domain where the McCann family stayed in 2007 when daughter Maddie disappeared there. The man is suspected of complicity in the Maddie McCann case. The night before the disappearance of the British toddler he had several contacts with the German prime suspect Christian Brückner. A crooked hotel worker and an innocent receptionist may have given Madeleine McCann's suspected abductor the opportunity to break in to her family's holiday apartment. The holiday complex receptionist noted the block dinner reservation in a staff register that was available for all to see at the Ocean Club in Praia da Luz. The employee tipped off Christian B that the McCanns and their friends ate each night at the same poolside bar. It also reported that the employee had Christian B's mobile phone number in his own phone.