My eight-year-old son was curled up on the living room floor, struggling to breathe after his twelve-year-old cousin punched him so hard he broke a rib.

“Was it a fall?” the doctor asked, staring at me.

I shook my head.

“This type of injury doesn’t correspond to a fall or an accidental push. There was a direct, hard blow. Very hard.”

Then I told him everything. That my twelve-year-old nephew had attacked him. That Mateo ended up on the ground. That when I tried to call for help, my mother took the…