It's not about it being an easier or quicker death, it’s about it being easier and quicker for the perpetrator.
But that's exactly what I'm talking about.
It’s much easier to pull a trigger than to stab someone. She had the same opportunity for both, but the gun was easier.
So in this particular scenario, the gun is actually not the easier option. Any particular advantage offered by the firearm is completely offset by the scenario, like the fact that there was only one target who was under their complete control.
There’s also a good chance she thought she could play it off as an accident. Obviously that won’t be the case with all the witness statements, but it would have been much harder to claim a fatal knife wound was an accident, and also less likely that an accidental knife wound would be fatal.
I mean, she didn't do a particularly good job playing off the gun as an accident either. If she were using the knife, she could say she was working in the kitchen, the kids were playing under her, she tripped, fell forward and plunged the knife into the kids neck. It'd be more believable than the gun safety story, as it relies a lot less on the adult being a completely clueless moron.
and also less likely that an accidental knife wound would be fatal.
True, depending on how the genuine accident happens. Unless you're stabbing someone 37 times in the chest, it is still perfectly possible to do a cover-up though.