German-American Holocaust survivor and author Guy Stern has died at the age of 101, the Berlin-based publishing house Aufbau announced on Friday. As a 15-year-old in 1937, he was able to flee his hometown of Hildesheim in Lower Saxony, heading alone to an uncle in the United States. His younger siblings and parents were among the 6 million Jews murdered by the Nazis. In the US, Stern joined the secret World War II military intelligence interrogation team Ritchie Boys, who interrogated German war prisoners in Europe from 1944 until the end of the war. He later worked as an academic, according t…