- Expert: Syrian defector has "direct evidence" of "systematic torture and killing"
- Defector provided thousands of photographs of victims, a new report states
- The defector, codenamed "Caesar," allegedly photographed as many as 50 bodies a day
- "This is a smoking gun," one lawyer says
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(CNN)A team of internationally renowned war crimes prosecutors and forensic experts has found "direct evidence" of "systematic torture and killing" by the Syrian President Bashar al-Assad's regime, the lawyers on the team say in a new report.