Yup. If you believe Previte, it was Natale who ordered his murder after repeated efforts of getting Sodano to come see him and kick up a portion of his earnings. They supposedly reached some deal and Sodano began kicking up, but still didn't come to AC and see Natale when ordered. And with that Natale & Merlino felt he was holding out, and Natale ordered his death and instructed Merlino to handle it. Merlino planned it out and successfully had Sodano murdered and never informed Natale of the details.