Mohammed El Senussi is the opposite of Muammar Gaddafi. He’s soft-spoken, nuanced, and dresses in business suits. He jogs daily to stay fit. El Senussi is also Gaddafi’s main rival. Gaddafi deposed El Senussi’s great-uncle, King Idris, in the 1969 coup that brought him to power. As the heir to the throne – King Idris died in 1983 — Crown Prince Mohammed may very well take over Libya when Gadaffi falls.