The son in "The Best Christmas Ever" died as a result of a tragic car accident involving a drunk driver. This heartbreaking event occurred during the holiday season, a time typically associated with joy and happiness. The loss of the son's life had a profound impact on the family, who were left grieving and struggling to cope with their unimaginable loss. Despite the tragedy, the story encourages readers to find hope and resilience in even the darkest of times, reminding us that while loss is a part of life, it does not define us.