Film Lesson: "Mountains of the Moon"

In this film Richard Burton and John Speek were on a quest to look for the source of the Nile.The Europeans faced many different kinds of hardship. One was the lack of technology the had. They also lacked conservation of food. There were hazardous insects. John Speek was one of the victims from the insects. A beetle entered his ear and was causing him pain. He stabbed the beetle in his ear. They faced boredom and teaching African's how to use their technology. One was a dangerous and the primary advantage they had over the Africans was the invention of the firearm gun. I believe it was foolish to give a primitive unintellectual person a gun, who knows what they can do with it ? Its strange that the Nile river is named after a British queen when its an African country containing mostly African's not whites. When you think of Africa, White people don't come into your mind, unless you go back in time like I'm explaining now. It was so easy for Europeans to invade Europe because of the lack of intelligence the people there possessed and all the gifts the Europeans had to offer to them. What got me curious is, Why did John Speek commit suicide ?