Paradise concludes, asking was Boston a master criminal - or just a lucky one?
The FBI faces questions over its failure to find Chris and Peta's graves.
Vince revisits the murder scene. Penny and Dan search the cemetery in Guatemala.
Dan, Vince and Penny meet in Belize – and a verdict is reached on Boston.
Dan and Vince decipher vital clues in the Mary Sellers notes
A bombshell revelation explains why the case went cold for so long
Did Boston's mother lie to the boys about Mary Lou?
Boston is finally arrested after 38 years - but crucial evidence remains buried.
Vince speaks about his mother’s disappearance and Stephen and Dan head to Crimecon.
Four decades on, Vince Boston recounts seeing his father drown Chris and Peta.