Adolf Eichmann: downfall

Lothar Hermann was also instrumental in exposing Eichmann's identity;
he was a half-Jewish German who had emigrated to Argentina in 1938.

His daughter Sylvia began dating a man named Klaus Eichmann in 1956 who boasted about his father's Nazi exploits.

 In the end, it was not others who found out but rather it was due to his son's boasting which led to other's suspicious and ultimately his capture.

furthermore, he took the monies from them.

From here, we learn that we did what is being told and shut out our mouth.