That's a terrible accident. 9.11 was not a good day.

She is in heaven now. All dogs and cats go to heaven.

Here is a poem may help you at this difficult time:

Do not stand at my grave and weep.
I am not there, I do not sleep.
I am a thousand winds that blow,
I am the diamond glints on snow.
I am the sunlight on ripened grain,
I am the gentle autumn's rain.
When you awaken in the morning's hush,
I am the swift uplifting rush
of quiet birds in circled flight.
I am the stars that shine at night.
Do not stand at my grave and cry,
I am not there, I did not die...
-Anonymous