True, but maybe there was no evidence.
If you get information that the investigative cops wanted a prosecution and Delahunt refused or that Amy Bishop was well-connected, it might be something, but otherwise prosecutors just get cases with no evidence.
I read the police report. They decided not to interview anyone beyond the initial inquiry on grounds that everyone was too emotional.
They accepted her mother's version that it was an accident.
If I accidentally shot someone, my instinct would be to call for help. She fled the scene.
I cant imagine police handling the situation this way if the principals were Joe Schmoes.