Wreckage Offers Clues on Why Flight 17 Went Down - NYTimes.com
▻http://www.nytimes.com/interactive/2014/07/21/world/europe/wreckage-offers-clues-on-why-flight-17-went-down.html
The shrapnel came from outside the plane.
Mr. Foster said the contour of the aluminum and the blistering of the paint around many of the holes indicate that small pieces of high-velocity shrapnel entered the aircraft externally. Mr. Foster said the two most likely causes were an engine explosion or an exploding missile.
