The case was named after Guenther Gustave Maria Rumrich, a United States Army sergeant turned deserter who pleaded guilty to espionage and agreed to testify on behalf of the US government.
Guenther Gustave Maria Rumrich was a United States Army sergeant turned deserter who pleaded guilty to espionage and agreed to testify on behalf of the US government.
[2] Rumrich stated Hoffman served as a go-between on the Europa to convey messages between his contact person in Germany, Karl Schlueter, and himself and the other spies in America.
[1] Before his capture, under the codename "Crown", Rumrich mailed letters to Jessie Jordan, a Scottish woman who was a spy for the Abwehr, in which he mentioned a plan for German secret service agents to physically overpower an American army colonel at the Hotel McAlpin in Manhattan, New York City.
[6] In court, Rumrich stated a contact person in Germany gave him instructions to determine how many US soldiers were stationed on the country's east coast, and specifically around the New York City area.