Pulled Pork

I bought a 4 pound pork shoulder to make pulled pork sandwiches.  I made a rub for the pork with thyme, cayenne pepper, salt, pepper, and garlic powder.  I put the pork shoulder in my crock pot on low and poured in it a cup of Dr Pepper.  I let this cook on low for 8 hours.  Once it was done, I pulled off the bone and the fat layer on top and put the meat in a bowl and it was very easy to shred with a fork.