On a stormy winter night, billionaire Jalal El-Din hosted a dinner party at his luxurious mansion. At exactly 9:45 PM, a terrifying gunshot rang out from the upper floor. The security guard, who was patrolling the hallway, rushed over and broke down the door to the private study, which was locked from the inside. The guard found Mr. Jalal dead with a gunshot wound to his chest, still bleeding, with the weapon lying beside him. The only window was securely closed and locked from the inside.
All the guests on the ground floor confirmed hearing the gunshot clearly at 9:45 PM. At first glance, it appears to be a clear-cut suicide or an impossible crime, as no one left the room and there was no other exit. However, a careful examination of the crime scene reveals that the killer manipulated time and logic with diabolical genius, leaving behind silent gaps that speak louder than bullets.