Complex sentence: Those who witnessed these first days agree that Colonel Bagosora, director of the Cabinet of the Ministry of Defence, that had authority over the Presidential Garde, assert that he orchistrated the events in Rwanda.
Split into simpler sentences: Those who witnessed these first days agree that Colonel Bagosora had authority over the presidential guard. Further, as thedirector of the Cabinet at the Ministry of Defence, it is asserted that he orchistrated the events in Rwanda.