source: He carried out brutal medical experiments on Nazi concentration camp prisoners and due to his SS rank he was administratively responsible for all medical experiments conducted.
target: He carried out brutal medical experiments on Nazi concentration camp prisoners. He was administratively responsible for all medical experiments conducted. His responsibility stemmed from his SS rank.
references: He carried out brutal medical experiments on Nazi concentration camp prisoners. He was administratively responsible for all medical experiments conducted. His responsibility stemmed from his SS rank.