My younger sister stole my mother's life-saving money to go on a trip

My sister stole my winning lottery ticket and took her boyfriend on vacation.

But that was the money for our mother's life-saving surgery.

I begged her to bring it back, but she never answered.

Her boyfriend just sent a single, breezy text: "The money's gone."

I tried to call again, but they had both blocked my number.

A few days later, my mother, having lost all hope, jumped from the roof of the hospital so she wouldn't be a burden to me.

As she fell, my sister and her boyfriend were on a