Alex Thomson, Chief Correspondent for Channel 4 News, spoke with residents of Houla, Syria who say men from surrounding villages attacked after shelling hit the town Friday.
Thomson says there have been ethnic, religious, and sectarian tensions in the area for sometime. About 100 men arrived, and villagers said "they were wearing basically military-style uniforms but were civilians." They also told Thomson the attackers went from house-to-house slaughtering people.
Watch a preview and see the full interview at 8 and 10 p.m. ET tonight on AC360°.