clueAn element that is meant to direct or guide investigators or problem solvers towards the solution.
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A piece of evidence or information used in the detection of a crime or solving of a mystery"'The detective found a clue at the crime scene.'"
suspectThe person believed to have committed the crime or wrongdoing.
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A person thought to be guilty of a crime or offense"'The police have identified a suspect in the burglary.'"
mysteryA situation or event that is difficult to understand or explain; an unsolved crime or unexplained phenomenon.
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An event or situation that is not understood or explained"'The disappearance of the ship remains a mystery.'"
A novel, play, or film dealing with a puzzling crime, especially a murder"'The House Without a Key is a captivating mystery novel.'"
alibiA claim by a defendant that they were elsewhere when a crime was committed.
Definitions:
A claim or piece of evidence that one was elsewhere when an act, typically a criminal one, is alleged to have taken place"'He has an alibi for the time of the murder.'"
homicideThe act of one person killing another.
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The deliberate and unlawful killing of one person by another; murder"'The detective is investigating a case of homicide.'"
intrigueA secret plan or scheme to accomplish some purpose, especially one that is illegal or underhanded.
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The secret planning of something illicit or detrimental"'There was a level of intrigue surrounding the man's sudden disappearance.'"
Make secret plans to do something illicit or detrimental to someone"'She was intrigued by the strange events at the mansion.'"
coincidenceA sequence of events that although accidental seems to have been planned or arranged.
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A remarkable concurrence of events or circumstances without apparent causal connection"'It was a coincidence that they both arrived at the crime scene at the same time.'"
secretiveKeeping one's thoughts, actions or intentions hidden.
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Inclined to conceal feelings and intentions or not to disclose information"'She was being secretive about her plans.'"
revealMaking something previously secret or unknown known to others.
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Make (previously unknown or secret information) known to others"'The detective revealed the identity of the murderer.'"
evidenceThe available body of facts or information indicating whether a belief or proposition is true or valid.
Definitions:
The available body of facts or information indicating whether a belief or proposition is true or valid"'There's substantial evidence to suggest that he was involved in the crime.'"