Am I just paranoid?

My 32 year old daughter is a fork lift driver for a warehouse. On Saturday she told me she was scheduled to work alone on Sunday. My hackles went right up, but I didn’t say anything. Was I just being paranoid?

And…she got assaulted in the office by a vendor from outside. She escaped unscathed, except for the emotional trauma. Police were called, he was fired, and now I’m scared he’s going to try to get revenge because he was fired. Am I just being paranoid?