A possible concise summary is:
The text is a transcript of a podcast episode about the shark arm case, a bizarre incident in 1935 when a shark vomited a human arm in an aquarium in Sydney, Australia. The arm belonged to Jimmy Smith, a former boxer and criminal associate of Reginald Holmes, a boat builder and drug dealer. The podcast hosts discuss various theories about who killed Smith and why, and how the arm ended up in the shark. They also make jokes and comments about the case and the characters involved.
Here are the key facts extracted from the text:
1. The text is a transcript of a podcast episode about the shark arm case that happened in Australia in 1935.
2. The case involved a tiger shark that vomited a human arm with a tattoo of two boxers at an aquarium.
3. The arm belonged to Jimmy Smith, a former boxer and billiard saloon keeper who was involved in various criminal activities with Reginald Holmes, a boat builder and drug dealer.
4. Smith was allegedly murdered by Patrick Brady, another criminal associate of Holmes, who tried to blackmail Holmes with the severed arm.
5. Holmes was also killed by a gunshot wound to his chest before he could testify against Brady at the inquest into Smith's murder.
6. Brady was acquitted due to lack of evidence and an old statute that required a body for an inquest.
7. The mystery of how the arm ended up in the shark's stomach remains unsolved.