Disarming

Maria Lopez was found dead in the breakdown lane, sitting in her SUV with her arm ripped out of its socket.
The first of many victims. Many more.
Pretty soon, you couldn’t drive the highways without passing one.
Then, a one-armed soccer coach crashed into an Emergency Room, covered with blood.
“I was talking on my cell phone, and he attacked me,” he said before dying.
The Cell Phone Vigilante was caught stalking an off-duty cop.
He’d lost his daughter to a careless driver talking on a cell phone. So, for revenge, he wandered the city and took their arms.