Complex sentence: During the interrogation, however, Dimitri Mishkin had learned from the information said by Natalya that it was General Ourumov who massacred the programmers and fired the GoldenEye satellite then, General Ourumov storms into the room, demanding access to the prisoners.
Split into simpler sentences: During the interrogation, however, Dimitri Mishkin had learned from the information said by Natalya that it was General Ourumov who massacred the programmers and fired the GoldenEye satellite. Then, General Ourumov storms into the room, demanding access to the prisoners.