File:Khan Sheikhoun - Ibaa News Agency 1m14s.jpg

Note the shadow in the background under the concrete slab roof. The front of the cylinder is almost fully exposed to sunlight. Compare the shadow to these two photos.
 * Source
 * عشرات الشهداء والمصابين إثر استهداف طائرات النظام المجرم لمدينة خان شيخون بالغازات السامة - Ibaa News Agency, April 4, 2017
 * (Dozens of martyrs and injured after targeting the criminal system aircraft to the city of Khan Shaikhoun poison gas)
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