More than a million documents have been taken out of Syria by a Western-funded NGO.
The Evidence Gatherers, a new episode of Mayday coming soon, available from 6 April.
What really happened in the Douma massacre?
Where does that leave everyone else?
Things start to unravel.
Now the rescuers need saving.
Could the rescuers be involved in staging chemical attacks?
James is accused of a horrific crime.
A video reveals disturbing new evidence.
The allegations begin.