MUST READ: Packers fan's heartwarming 'thank you' to Seattle might bring you to tears

A general view in the first quarter between the Seattle Seahawks and the San Francisco 49ers during the 2014 NFC Championship at CenturyLink Field on January 19, 2014 in Seattle, Washington. (Photo by Tom Pennington/Getty Images)



SEATTLE -- It was an incredible comeback win for Seahawks fans Sunday in the NFC Championship. And a heartbreaking loss for Green Bay Packers fans.

One of those Packers fans wrote a heartwarming "thank you" note to Seattle and posted it on Craigslist early Monday.

The 55-year-old from Orlando tells a story of his 10-year-old son's loss of a beloved friend -- and how a trip to the NFC Championship in Seattle changed everything.