Former firefighter and entrepreneur Keith Young, diagnosed with a 9/11-related cancer after working at Ground Zero, tragically passed away before witnessing the success of his invention, the Cup Board Pro. However, his children carried on his legacy.

The original pitch is from Season 10, Episode 3, and the update is from Season 14, Episode 14.

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Shark Tank How It Started: 9/11 Firefighter's Invention Continues to Thrive