Who killed Mary Jane?

Can you see her desire?
Who knows that she´s just a liar?
She was gone with that man
in that old black vane

I know she won´t be coming back
I know she was missed and she´s maybe dead
they found her body lying in the back of a cadillac
Who killed Mary Jane?

She was out with the boys
she was glad with all that noise
she was looking out for life
but she was getting only the knife

She´s lying here in her blood
killed by a man without love
a man who has never known
he is running into the unknown