11.   Rumors abounded that Wang was killed to prevent him from informing on others.

12.   Rumors abounded that Wang was killed to prevent him from squealing on others.

13.   The book says Piat was killed to prevent her from disclosing a plan to sell military land in southern France to the mafia.

14.   The newspaper and many people feel Kholodov was killed to prevent him from testifying before parliament about the corruption.