Jerome Sessini has been covering the conflict between the Ukrainian Government and pro-Russian separatist rebels near the eastern border with Russia. Once he'd found out that a civilian passenger airliner had gone down in the region, Sessini made his way to the crash site.

On the afternoon of July 17, Malaysia Airlines Flight 17 disintegrated over eastern Ukraine resulting in the death all 298 passengers and crew. That evening US officials announced that they had evidence that the plane had been shot down by a surface-to-air missile of Russian manufacture that had been launched from a region...