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In 1992 Mario Amado went to Rosarito Beach, Mexico with his brother and their girlfriends. While he is there police are called on him for a domestic disturbance and he is arrested. Mario then mysteriously dies in jail and it is initially ruled a suicide. However, additional autopsies show that he was murdered. His death is still considered a mystery. 

Sources:

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• https://unsolvedmysteries.fandom.com/wiki/Mario_Amado
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• https://truecrimediva.com/mario-amado/
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• https://www.latimes.com/archives/la-xpm-1996-01-12-mn-23896-story.html
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• https://www.findagrave.com/memorial/5400578/mario-vicente-amado
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• https://medium.com/true-crime-addiction/a-trip-mario-amado-would-never-return-from-true-crime-2cd5bd189bfe
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• https://www.latimes.com/archives/la-xpm-1996-05-31-me-10521-story.html
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• https://www.latimes.com/archives/la-xpm-1996-05-23-me-7353-story.html
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• https://www.latimes.com/archives/la-xpm-1996-05-14-mn-4045-story.html
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• https://archive.seattletimes.com/archive/?date=19930511&slug=1700582
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