The mystery of the missing three-year-old Madeleine McCann has preoccupied the British public since she vanished from her family’s holiday apartment in Praia da Luz, in Portugal’s Algarve 18 years ago.
Millions of pounds have been spent on investigation after investigation amid relentless media scrutiny, but progress appeared to have all but stalled until 2020, when German investigators revealed they had identified a prime suspect – convicted rapist Christian Brueckner.
