From ABC News:
"Aldana says her son, who took her to a firing range to train her to shoot, bought the gun for the store. The family never thought they would need for the firearm, but are now grateful. “If I didn’t have the gun there, he would have hurt me, once I had the gun there it changed everything,” said Aldana.
In December 2011, Gov. Scott Walker signed a bill passing the “Castle Doctrine” in the state, which protects home and business owners using a gun in self-defense on their property.
Aldana added that she is now skeptical of restrictions on gun ownership. “[The gun] saved my life,” she said."