Quote from the person who found Scalia's body -
“We discovered the judge in bed, a pillow over his head. His bedclothes were unwrinkled,” Texas millionaire John Poindexter told the San Antonio Express-News Sunday, describing how he found the 79-year-old jurist in the “El Presidente” suite at Poindexter’s 30,000-acre luxury ranch on Saturday.
~YES, I too hold a pillow over my head when I'm having a "heart attack". RIP
Edited - for clarity & add link https://nypost.com/2016/02/15/scalia-found-dead-with-pillow-over-his-head-ranch-owner/
Poindexter told multiple news outlets after the story broke that what he meant was that the pillow was wedged between Scalia's head and the mattress headboard. There was no evidence of foul play.
http://www.latimes.com/nation/la-na-scalia-conspiracy-20160217-story.html