If you think that's bad you should read about what the Belgians did in the Congo or what the British did in India! You'll have loads of fun bedtime reading material for sure.
Did you have to mention Belgium?!?!
Just two days ago, the day when he got murdered 62 years ago, he was featured on the Wikipedia frontpage and I read parts of the Article:
Lumumba - Foreign involvement in his murder Looks like everybody wanted him dead for fear of turning communist and/or endangering economic interests - except for Kennedy, which might have accellerated the process...