Hosam Saraya, who had returned to Syria to aid his ill father, was executed along with other members of his family. Their killings were captured on video recorded by the gunmen.

With loved ones trapped in Syria and videos of brutal attacks spreading on social media, they're begging for someone - anyone - to help.

More than 1,400 people, mostly civilians, were killed in several days of sectarian violence in Syria’s coastal regions earlier this year, a government committee tasked with investigating the attacks has found.