Is this a violation of privacy

[Lizzly]

I am a C.N.A working at a assistant living home where the majority of the NA (Nurses's Aid) are not even certified which causes a dysfunctional working environment for the rest of us because the NA's working there does not follow the rules and do what benefits them. Today, After finding out a NA let a resident read the End of the shift books, where we write notes about each residents' day, I was furious. We fill out a sheet of paper, end of shift report, with every residents' name on it so the next shift knows what happened the previous shift. Even if he's in his right mind, he has the right to read our communication books? He said he was in his right mind and had the right to know what was written about him and refused to tell me who let him read our communication books. Is this a violation of privacy of the residents and should I report it or just forget it?