This short story from the collection Wild Child was originally published in the New Yorker.
Gordon is a delivery driver with a predilection toward road rage, and he's on the most important delivery of his life. In Santa Barbara there's a mother of three on life support waiting for Gordon, waiting for the liver he's transporting from Los Angeles. But there's a mudslide, and cars are being swept away, people being buried in the sludge. And Gordon, who's as far from a hero as they come, has to find a way to get the liver to Santa Barbara.
One of the most captivating short stories I have ever read. Mr Boyle came to UCSB shortly after the time this horrible event happened. I was working there but unfortunately did not see him. I regret this now more than ever. Read this story!