Complex sentence: After leading Mulder and Scully on a cat and mouse chase, he lured Mulder into a game of Russian Roulette but Mulder managed to gain the upper hand and shoot Modell, putting him into a coma.
Split into simpler sentences: After leading Mulder and Scully on a cat and mouse chase, he lured Mulder into a game of Russian Roulette. Mulder eventually managed to break free of Modell's mental hold and shoot Modell, putting him into a coma.