4 union employees were recently terminated as a disciplinary action pertaining to a guilty plea agreement with authorities between 6 months to 13 months earlier. The offenses were committed at work with a former employer over 5 years ago. The current company had come in 5 years ago and gave the 4 individuals written warnings as discipline for their action with this prior company and wrote a letter stating this would be the last discipline on this issue. Now over 5 years later they fired all four individuals because our their guilty plea bargains they made over 6 months ago. They have never done anything wrong with their current employer. The union is going through the grievance process to try & get their jobs reinstated with backpay but want to know if they can sue for pain&suffering?