Daniel Carpenter, lived a long life and just as the events in the episode he was in took place he passed away. How he died is unknown, but possibly just old age and natural causes. According to DJ Roy the reason he didn't crossover over at the time of his death, must have been because he slept in the hearse for too long.
Station 109.1 played a radio broadcast in the hearse. This was to inform him that he can find a place to finally help him crossover to the afterlife. However it turns out that he wasn't in the hearse at the time when the radio broadcast played. Instead a young teenaged boy named Chris Leary was. Also Chris was mistaken for him and was sent in his place by DJ Roy.
When he finally got through to Chris' brother Jamie that he wasn't kidding. he was brought to the station just as Chris was being brought to the doors of the afterlife in his place. When Chris was sent in he snapped at DJ Roy calling him a fool and confirming that he was Daniel Carpenter. When god sent Chris backeverything was cleared up and sorted out the bracelet that relieves the deceased from anything that is keeping him to the physical world, was placed onto his wrist.
Then the doors opened and he was ready to embrace his fate. Before he went Chris asked him if he is afraid that it will be horrible ? As Daniel slowly walks into the doorway, because DJ Roy nicely said as he was going in, "If you lived a good life it's the best thing going". Then it can be assumed that he lived his life as a good-hearted person.