Complex sentence: Henning, a taxi driver from Salford, Greater Manchester, had volunteered to deliver aid to Syria when he was kidnapped in Al-Dana, an area held by ISIS, on 27 December 2013.
Split into simpler sentences: Henning, a taxi driver from Salford, Greater Manchester, had volunteered to deliver aid to Syria. He was kidnapped in Al-Dana, an area held by ISIS, on 27 December 2013.