how can i find someone willing to sue local jail?

That is terrible. The jail should not be able to treat your family like that and get away with it. Please contact me via email: aric@aricwilliamslaw.com. I would like to hear more about your case and see if there is something I can do to help you and your family get the justice you deserve. 

I am sorry to hear about your misfortune and the misfortune of your family member.   with regard to the criminal charge,oplease understand that attorney fees are on a fee for service basis.  That means that the client (or someone on the client's behalf) pays the attorney for the work. It is not based on the possibility of a recovery from a civil case.   Before I could consider the beating case, I would need to know many pieces of information including, where it occurred, when, the identity of the perpetrator, was it an inmate or jailers, was it reported, were any photos taken.       Gary Kollin, Esq.