R.I.P. Runaway.
Run and play warm and free over the bridge.
I'm so sorry for this terrible loss. I always have a hard time with the ones that never knew the warmth and love of a home. I'm sure she knew you loved her, she just couldn't overcome her fear.
Monique... I'm so sorry and not just about Runway. I hate that it hurts us to care so much but think of the kitties we care about. Our pain brings them joy... and even in a situation like this I'm sure she knew how much you cared and she's in a happier and safe place now.