List of unsolved deaths

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This list of unsolved deaths includes notable cases where:

• The cause of death could not be officially determined following an investigation
• The person's identity could not be established after they were found dead
• The cause is known, but the manner of death (homicide, suicide, accident) could not be determined following an investigation
• Different official investigations have come to different conclusions

Cases where there are unofficial alternative theories about deaths – the most common theory being that the death was a homicide – can be found under: Death conspiracy theories.