Complex sentence: As he investigates further, he discovers that the military and the government doctored much of the evidence, and that the spy who actually passed the information Dreyfus was convicted of sending to the Germans ois, in fact, still operating.
Split into simpler sentences: As he investigates further, he discovers that the military and the government doctored much of the evidence. Moreover, the spy who actually passed the information Dreyfus was convicted of sending to the Germans is, in fact, still operating.