"Contract killers" are individuals hired to carry out assassinations for a fee. They often work in secrecy and may be part of organized crime groups or operate independently. Their services are typically sought by clients who want to eliminate a target for various reasons, including personal vendettas or business disputes. The act of hiring a contract killer is illegal in most jurisdictions and is considered a serious crime. Law enforcement agencies, such as the FBI or Interpol, actively investigate and prosecute those involved in contract killings. The consequences for both the killer and the client can be severe, including long prison sentences.