Curious...
If she was handcuffed to a chair, how did she shoot?
Amazing she was able to move to her bedroom and back to the living room while cuffed. Wonder how long it took her for him not to notice or hear.
A brave woman.
Likely a double action revolver. Pulling the trigger pulls the hammer back to a ready position and drops it on the firing pin. It also indexes the cylinder.
Might have just had her cuffed by one hand.