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.
I’m getting this too from reading about the case. Basically, if you can prove that there’s a comfortable relationship between Delahunt and the family, that should be enough.