 In 1997, underwater sensors operated by NOAA detected an extraordinarily powerful sound in the Pacific Ocean. It was picked up thousands of miles away. Its origin was never definitively identified. Some scientists proposed a natural explanation. Others considered possibilities that remained inconclusive. The recording, known as "The Bloop," remains one of the strangest sounds ever captured beneath the ocean's surface.

&nbsp;In 1997, underwater sensors operated by NOAA detected an extraordinarily powerful sound in the Pacific Ocean. It was picked up thousands of miles away. Its origin was never definitively identified. Some scientists proposed a natural explanation. Others considered possibilities that remained inconclusive. The recording, known as "The Bloop," remains one of the strangest sounds ever captured beneath the ocean's surface.

Every episode tells a true story. A disappearance. A crime. A case that was never resolved. No dramatization. No speculation. Only the facts, told with precision. Case Zero is a documentary true crime podcast narrated in the third person, designed to be listened to closely. New episodes every week.

Every episode tells a true story. A disappearance. A crime. A case that was never resolved. No dramatization. No speculation. Only the facts, told with precision. Case Zero is a documentary true crime podcast narrated in the third person, designed to be listened to closely. New episodes every week.

Case Zero

The Signal No One Could Explain

In 2014, Lars Mittank, a young German man, was captured on security cameras at an airport in Bulgaria. The footage shows him visibly agitated, scanning the room as though he believed he was being watched. Without warning, he abandoned his belongings, ran out of the building, and disappeared. He has never been seen again. Despite the footage being widely circulated and investigations launched, his whereabouts remain unknown.

In 2014, Lars Mittank, a young German man, was captured on security cameras at an airport in Bulgaria. The footage shows him visibly agitated, scanning the room as though he believed he was being watched. Without warning, he abandoned his belongings, ran out of the building, and disappeared. He has never been seen again. Despite the footage being widely circulated and investigations launched, his whereabouts remain unknown.

The Footage No One Could Explain

In 1948, the body of a man was found on a beach in Australia. He carried no identification. Every label had been removed from his clothing. In one of his pockets, investigators found a small scrap of paper bearing a phrase in Persian: "Tamám Shud" — meaning "finished." The investigation uncovered encrypted clues, a mysterious book, and connections that were never fully explained. More than seventy years later, his identity and the circumstances of his death remain the subject of ongoing debate.

In 1948, the body of a man was found on a beach in Australia. He carried no identification. Every label had been removed from his clothing. In one of his pockets, investigators found a small scrap of paper bearing a phrase in Persian: "Tam&aacute;m Shud" &mdash; meaning "finished." The investigation uncovered encrypted clues, a mysterious book, and connections that were never fully explained. More than seventy years later, his identity and the circumstances of his death remain the subject of ongoing debate.

The Man with No Name

 In 2006, Rey Rivera disappeared in Baltimore. Days later, his body was found inside a hotel — in an abandoned conference room he appeared to have fallen through from a considerable height. The room was locked. There were no witnesses. The trajectory of the fall did not quite fit the scene. Police classified the death as unexplained. Years later, the case continues to raise questions about what really happened in his final hours.

&nbsp;In 2006, Rey Rivera disappeared in Baltimore. Days later, his body was found inside a hotel &mdash; in an abandoned conference room he appeared to have fallen through from a considerable height. The room was locked. There were no witnesses. The trajectory of the fall did not quite fit the scene. Police classified the death as unexplained. Years later, the case continues to raise questions about what really happened in his final hours.

The Signal No One Could Explain

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