Complex sentence: Originally Jamila was an astronaut, but his travels in space had changwas not originally his fault, but his teammates managed to convince him that because Jamila had done him no wrong, he had to be stopped.
Split into simpler sentences: Originally Jamila was an astronaut, but his travels in space had changed him. It was not originally his fault, but his teammates managed to convince him that because Jamila had done him no wrong, he had to be stopped.