What do I do about being accused of elder abuse at work? What happens next?

So I work at a senior facility on a memory care floor and a resident who loves to fight fell forward on the floor trying to hit me. I ran and got the nurse we both witnessed him get off the floor. He was holding his knee so the nurse asked "are you okay?" And he said "yes" and he sat in the dinning area in dim light because it was overnight. The nurse never assessed him or anything after that. Another co worker of mine attempted to get him to go back to bed in which he did. Because of him attempting to harm me I Informed my co worker she would have to do rounds on him later because I didn't feel comfortable. That was last Wednesday night shift, I worked the rest of the weekend with him and I have no issues. I get a call from my boss Monday morning saying I'm suspended because"my name was given" as to been the one who put scratches on his face". I didn't even know he had scratches on his face. So now I'm suspended, they called me back on Tuesday morning at 9am and said the allegations were cleared and I could come back to work that night. Then called me again at 4pm and said they spoke too soon because the state has to do their investigation and say if I can come or not. So at this point I'm still suspended and don't know when I can come back. What happens now?? I can't believe this I've been working with the same resident for 3 years now.