What are my rights if I have been accused of downloading customer information?

I recently left Document Technologies, a Xerox Agent after working there for 5 years to go work for Ricoh Direct. I never signed a no compete and this was verified by Ricoh so I was hired and started August 5th. Document Technologies showed up to Ricoh on August 6th causing a scene and then contacted Ricoh's human resource department and accused me of downloading customer information. I never downloaded any customer information to any Ricoh computers or anything at all. It's been over 24 hours and Document Technologies still hasn't provided any proof of me downloading anything; however Ricoh sent me home yesterday evening and hasn't been in touch with me about anything. They won't tell me how long they are going to give Document Technologies to prove these accusations or anything. Document Technologies also told me they aren't paying me my final check. I need to know my rights here. This is slander, defamation of character and mental anguish because I am now on the verge of losing my new job because of these false accusations made by Document Technologies. I need help and this is a huge case. There was a Caucasian woman that left Document Technologies and went to work for a competitor and she was not pursued in this manner and she was paid her final check. I believe this is happening to me because I am black.