Complex sentence: Mrs. McAlpin provides the agents with a photo of Wharton with Bauvais in Haiti, causing the agents to go through his office, finding that both Dunham and the other dead soldier were going to testify against him.
Split into simpler sentences: Mrs. McAlpin provides the agents with a photo of Wharton with Bauvais in Haiti, causing the agents to go through his office. They find that both Dunham and the other dead soldier were going to testify against him.