Mourners carry the coffin of Yasser Faisal al-Jumaili, who was killed on assignment in Syria, at his funeral in Falluja, Iraq, on December 8. (Reuters/Thaier Al-Sudani)
Mourners carry the coffin of Yasser Faisal al-Jumaili, who was killed on assignment in Syria, at his funeral in Falluja, Iraq, on December 8. (Reuters/Thaier Al-Sudani)

Behind the numbers: Researching Syria’s killed journalists