With the circumcision death I think its a little different. The parents need to know that their child died of an Unecessary medical procedure that they authorized. Their poor decision making contributed to the tragedy and they need to know this (they probably do already). I don't think they can be held mostly responsible though. The majority of the responsibility falls on the doctor who performed the procedure. The doctor is the trained medical professional who should know the ins and outs of the benefits (or lack thereof)of the procedure. The doctor should have been aware of additional risk factors such as hemophilia and tested accordingly.