By David M. Herszenhorn and Sabrina Tavernise
New York Times News Service
Published Jul 20, 2014 at 12:01AM
Vadim Ghirda / The Associated Press
A paramedic walks by a part of fuselage at the crash site of Malaysia Airlines Flight 17 near the village of Hrabove, eastern Ukraine, Saturday. World leaders demanded Friday that pro-Russia rebels who control the eastern Ukraine crash site of Malaysia Airlines Flight 17 give immediate, unfettered access to independent investigators to determine who shot down the plane.