This is so sudden and sad. He was just 58 and died while at work.
While it is sudden and sad, it sounds as if he lived a very strong and full life, his son had just graduated from college and he and his wife had just returned from a trip to Italy. I would like to go suddenly without any lingering, painful decay.
Yes I agree, quicker is better than lingering IMO.
In followup to the trip to Italy, he may have developed a blood clot from the prolonged sitting.