I have been confronted 3 times at my whits end

I was laid off in 2009 by an employer. They cliamed that the economy was bad. In march of this year I was asked to come back to help out. 3 days into my employment I was asked to give statments about a sexual harassment case to an fact finding investigator. I was told that I could speak openly and would not be retaliated aginst. Well my boss has confronted me 3 times now about what I said. Twice at work and once on the phone. Now he is stating I need to cut the staff by 50% we were asked to write out why han how much we can cut back. We were asked to cut our hours and pay. I have never been put on payrool. Now i am asked to cut my pay even further. I called the investigator I talked to an told them an got nowhere. My boss said that "I have been advised that I can't lay you off per my lawyer" and "if my lawer knew i was talking to you about this he would fire me." He hired me to do a job im not qualified for. Now he is claiming "I want to be your friend" and I can't take going to work i was never trained or updated on my job. He has hired and paid others to do things in my skillset. I am at a loss and feel I get to listen to him drone on about this case and how i could feel that I would be retaliated aginst others have told me they are keeping their mouths shut ect ect I am scrapeing by and get confronted when the boss in in the office. I hate coming into work and cant take it.