Pulled Pork Sandwiches

Name: Pulled Pork Sandwiches
Ingredients: 4 tablespoons sweet paprika; 2 tablespoons chili powder; 2 tablespoons ground cumin; 2 tablespoons dark brown sugar; 2 tablespoons salt; 1 tablespoon dried oregano; 1 tablespoon sugar; 2 tablespoons ground black pepper; 2 teaspoons cayenne pepper; 1 bone-in pork roast, preferably Boston butt (6-8 pounds); 2 tablespoons vegetable oil; 1 onion, finely chopped; 3 garlic cloves, minced; 1½ cups ketchup; ½ cup cider vinegar; ¼ cup Worcestershire sauce; ⅓ cup sugar; 1 tablespoon chili powder; ½ teaspoon cayenne pepper