Nader Al-Alfi, a ruthless billionaire and antiquities collector, was found dead from a fatal blow to the back of the head inside the 'secret vault' beneath his country manor. The body was discovered at 3:45 PM when the estate manager went down to serve coffee and found the vault door slightly ajar. The coroner pinpointed the time of death precisely between 3:00 PM and 3:30 PM. The vault is located underground and dedicated to storing his rarest possessions.
At the time of the murder, there were only five people in the manor, each with a compelling reason to get rid of Nader. The police face a complex puzzle: all suspects have alibis, and some are clearly lying, but the exterior security cameras were disabled by a previous storm. The killer executed the crime in cold blood, leaving behind a scene seemingly devoid of any direct evidence.
Investigators have gathered testimonies from those present and a set of physical reports from the crime scene. Your task is to read between the lines, expose the secondary lies, and identify the one criminal who cannot possibly be innocent based on the intersection of spatial and temporal evidence.