how did danny die in best christmas ever

Danny was killed in the end, as a result of his reckless and self-serving actions. He chose to push the homeless man to his death, a cruel and callous act of betrayal. The homeless man, having been abandoned by Danny, became consumed by anger and revenge, and in his desperation, he sought out Danny's wife and children. In a tragic turn of events, the homeless man murdered Danny's entire family, leaving him with nothing.