Screenshot from footage shows smoke rising from the town of al-Bayda on May 3, 2013. After the mass killings, pro-government forces burned and looted a number of homes and intentionally destroyed property. Much of the looting and burning happened on May 3, the day after the killings, when pro-government forces returned to al-Bayda.
Source: http://www.youtube.com/watch?v=vEDQWW5iVK0