To summarize we have three witnesses, a video and now a court summons that when put together show the exact same thing.
Ray Rice and his fiancee got into a verbal argument, she either struck him or spit on him. At that point Rice either with an uppercut or punched knocks her unconscious.
Rice then proceeds to drag her throughout the casino and out of an elevator, before someone from the casino staff aids his fiancee.
You can read a copy of the summons below.
Here is the summons against Janay Palmer.
H/T @HellgrenWJZ