I 79% believe it was natural causes, but the owner of the dump he was staying in said he had pillow over his head, among other oddities (no autopsy, no viewing of the body by an <E or doctor, declaration of death done over phone). It is all over the net on mainstream news sources (such as Houston Chronicle).
Ranch is owned by Texas multi-millionare/billionare John Pointdexter*...
http://www.mysanantonio.com/news/local/article/Texas-ranch-owner-recalls-Scalia-s-last-hours-6830372.php
Scalia was just the latest newsworthy guest to visit the celebrity hideaway that covers 30,000 acres near the Chinati Mountains. Mick Jagger, Julia Roberts and Tommy Lee Jones have also partaken of its scenic vistas and luxury accomodations.
Established in 1857 by Milton Faver, known as the first Texas cattle baron west of the Pecos, the ranch retains 19th Century constructions, including “El Fortin de Cibolo,” a primitive fort designed to protect settlers from Apaches.
In a special guest package offered last month, rooms went for $545 to $565 a night for two people, with a meal package and ranch tour included. Other activities include hiking, horseback riding, bird-watching and ATV tours.
*http://www.texasmonthly.com/articles/the-man-in-the-white-hat/
Seriously, with all due respect, your post indicated that you read some articles—but missed this one on Drudge about the Ranch—it was far from a dump...nightly rate of $545-$565 for a double...that is **NOT** A Motel 6 or Super 8.
Ranch is owned by Texas multi-millionare/billionare John Pointdexter*...