When stirring it around 3 hours into the cooking the chicken became so moist that it started breaking apart, so I had the idea to shred it and let all those delicious juices be absorbed into the chicken. It worked out perfectly and it was incredible.
Sprinkle chicken with 1/2 teaspoon salt and 1/8 teaspoon black pepper. Heat oil in a large skillet over medium-high heat. Add chicken to pan; cook 2 minutes on each side or until browned. Place chicken in an electric slow cooker.
Place wine mixture in cooker. Add 3 tablespoons tomato paste, crushed red pepper, Italian seasoning and tomatoes to cooker.
Cover and cook on HIGH 3-4 hours. Stir chicken until it becomes shredded. Stir in remaining 1/2 teaspoon salt, remaining 1/8 teaspoon pepper, olives, 2 tablespoons of tomato paste and parsley.
Remove from crock pot and serve over rice, with a dollop of mascarpone cheese or sour cream.