Explain to me how the engineers aren't guilty of manslaughter?
Look, I lasted one semester at engineering school, washed all the way out almost immediately. I still had to write a 10-page case study on an engineering failure, and the one I chose was the McDonnell-Douglas DC-10 cargo door failures. They teach this shit in failing community colleges in purple states. The buck stops with the PE that signed the plans. Drag his ass into criminal court. The person who allowed this design to go to production does not need to be free.