Illegal fishing ring resulted in 3 murders in 1940 — and armed game wardens in Minnesota

Decades ago, Minnesota conservation officers, then known as game wardens, generally didn't carry weapons on duty. But that changed following a single deadly encounter on July 12, 1940, that left three wardens slaughtered and their killer dead in less than a minute. Written by Kari Lucin Narrated by Trisha Taurinskas