Pay It Forward: Cory Beyer and Justin Shafer

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ST. LOUIS, MO (KTVI)-- It was a crime that shook all of us last month. A tow truck driver struck and killed on Interstate 70 while assisting a motorist.

There's a good chance the hit-and-run driver wouldn't have been caught had it not been for three Good Samaritans.

In Pay It Forward, Elliot Weiler shows you how the victim's family says "thank you."

READ MORE: CLICK HERE to read the story about the young men.