Supposedly Ayers skated because the evidence collected against him included illegal wiretaps.
It would be interesting to see which state was the venue for this decision.
He had a very powerful politically connected (to Daley) father who may have had influence in the decision to dismiss the charges.
Dohrn did spend time in prison for refusing to testify before a grand jury.
Since Ayers has pretty much confessed to what he did, why can’t be charged with violating the Civil Rights of those he killed? It has worked in other cases.