Alberto Arroyo's Obituary from the New York Times.
The reporter used many different sources for this obituary. He cited past interviews with Sen. William Proxmire and Alberto Arroyo himself. He talked to both Henry Stern, the parks commissioner and Louis Torres, a friend of Arroyo's helping to execute his will.
My guess is that the reporter also looked at the three scrapbooks Arroyo kept. In it Arroyo saved clippings about himself. I assume the reporter looked at the clippings directly in his scrapbooks or searched online for information others reported about Arroyo.
There was also a documentary made about Arroyo that I am sure the reporter saw.
The lead has all of the parts of a typical obituary lead has, but the reporter arranges the parts in a different way. I think the way the lead is written hints at Arroyo's personality and therefore works. I get the impression he was a bit of a storyteller, but that people were more than happy to listen to stories of the interesting life he led.
While Arroyo's obituary lists his achievements, the story moves beyond that of a resume by showing the impact he had on the people around him. You can almost feel Arroyo's personality oozing through the writing.
Whether this was by conscious choice or due to a lack of information, the story is not bogged down in information about Arroyo's academic or professional life. Instead we see him through the eyes of those who were lucky enough to have encountered him.