Complex sentence: Initially, "the increasingly guilt-ridden" Powell is the only rapist who has a conscience, attempts to convince Todd and Zach to confess their crime, and comes close to confessing to his lawyer.
Split into simpler sentences: Initially, "the increasingly guilt-ridden" Powell is the only rapist who has a conscience. He attempts to convince Todd and Zach to confess their crime, and comes close to confessing to his lawyer.