Died at Lime Rock on Saturday: http://www.mcall.com/news/local/all-b1_5racesep26,0,8071.story?coll=all-news-hed&track=mostemailedlink My condolences to the family and friends.
From the article: "According to officials, the car did not ignite and Zimmerman was not ejected, adding he was strapped in with five or six safety harnesses. He was pronounced dead at Sharon Hospital at 5:24 p.m. The other driver, Phil Johnson of New Haven, Conn., walked away with bruised ribs. ''It was a freak thing,'' Trooper John Green said, adding that Zimmerman may have died from a head injury akin to the one that killed NASCAR driver Dale Earnhardt in 2001. The case will remain open until the cars can be inspected for mechanical problems, Green said, and toxicology test results come back." If this turns out to be the case (basilar skull fracture), it sounds like a HANS device may have saved him.
That's exactly what I thought, but someone on another board posted that there was a HANS device present: http://p081.ezboard.com/fdsrforumgeneraldiscussion.showMessage?topicID=1417.topic