Oh, Mimine. I can't even imgaine how hard that must be for you.

I am so sorry firstly that you have lost your pet. Losing a loved pet is hard in ANY circumstances.

And then I am so sorry that you lost her in this way. Yes, it was an accident and it wasn't your fault and you couldn't have foreseen it and you couldn't have prevented it an' allllllll that... but I know you must feel a sickening guilt that it happened this way. I know I would, even while *knowing* that it wasn't my fault.

I'm so so sorry this happened.
Breathe deep. Grieve well.
Nurture you.