Crock Pot Pulled Pork

3 lbs butt pork, cubed
2 cups chopped onions
1 green pepper, chopped
1/2 cup brown sugar
1/4 cup vinegar
6 oz can tomato paste
1 1/2 Tbs chilli powder
1 tsp dry mustard
2 tsp Worcestershire sauce
2 tsp salt
 
1. Combine all ingredients in crock pot
2. Cover and cook on high 6-8 hours
3. Shred meat with fork. Mix and heat through.