der Killer

1. 1

   killer, murderer — usually either a paid killer, contract killer, gunman, hitman or a serial killer, often in proper nouns, e.g., in tabloids

   • Was hat Tom zu einem Killer gemacht?

     What turned Tom into a killer?

     Tatoeba · wolfgangth · CC BY 2.0 FR

Forms in lighter type are derived by the standard declension rules from the nominative, genitive and plural.