suspect
The German word 'Verdächtiger' is a noun that refers to a person who is suspected of having committed a crime. It can also be used as an adjective to describe something that is suspected of being true or real. In English, the word 'suspect' can also be used as a noun or an adjective, with similar meanings.
The suspect was arrested by the police.
This phrase is used in case there is a single suspect who has been caught by the police. 'Der' is a definite article referring to 'the', 'Verdächtiger' stands for 'suspect', 'wurde' means 'was', 'von der' translates as 'by the' and 'Polizei festgenommen' means 'police arrested'.
A suspect remains at large.
This phrase is used when a suspect is not yet caught by the police and remains on the loose. 'Ein' is the indefinite article 'a', 'Verdächtiger' translates to 'suspect', 'bleibt' means 'remains', and 'auf freiem Fuß' directly translates to 'on free foot', an idiom meaning 'at large'.
You are the suspect in this case.
This sentence is used if someone is identified as the suspect in a specific case. 'Sie' translates to 'you', 'sind' is 'are', 'der' is the definite article 'the', 'Verdächtiger' refers to 'suspect', 'in' translates to 'in', 'diesem' is 'this', and 'Fall' means 'case'.