suspect
US /səˈspekt/
UK /səˈspekt/

1.
a person thought to be guilty of a crime or offense
:
•
The police questioned the main suspect for hours.
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He became a suspect after his fingerprints were found at the scene.
1.
have an idea or impression of the existence, presence, or truth of (something) without certain proof
:
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I suspect he's hiding something from us.
•
She began to suspect that he was lying.
1.
regarded with suspicion; distrusted
:
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His sudden wealth made him a suspect character.
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The package looked suspect, so they called the bomb squad.