Combine the water and beef stock to make broth. Then combine the broth and all the other ingredients into a crock pot. Cook on low for a minimum of 6 hours or until meat begins to fall apart. Cool and shred meat ****Make sure to reserve broth from crockpot*** Strain broth.
Place shredded meat into crockpot. Add enough broth to keep moist. Cook two more hours.
If you are really brave, instead of just jalapeno juice, use one jar of chopped jalapenos and juice!
Serve with flour tortillas and rice, roll them like burritos or tacos.