Deir Baalba Massacre
Neither side in the conflict seems to have told their full side version of this incident, though both have weighed in. Syrian state TV SANA lodged the first report of a massacre on the 2nd or 3rd, while rebels only scooped up a few "shelling victims." Opposition sources blame the regime or "Alawites" for shelling and executions all through the ten-day span. But they only obtained proof of the worst of it afterwards, reporting mass graves found on the 10th and after. (see LCC narrative). The VDC's and others' lists show certain families were singled out for several deaths each, including a startling 58 members of an extended Al-Abbas family/name, spread over several decimated sub-families. Other names like Kanaan, Al-Sheikh, Nasser, Haijan, Rajab, Al-Ali, Suleiman, etc. keep re-appearing in groups and in different combinations.
The alleged sole survivor of a singular mass killing of probably 200 or more on April 2, as he tells it, blames "Shabiha and supporters of the regime" and/or "Iranians." First they raped the women and slaughtered the children, including his own, then gunned down about 180 men, he says. But the story told by "Abo Haitham" is logically problematic, suspiciously dramatic, heavy on pleading for foreign intervention, vague in spots (like victim family names), and conflicts with the drift of all other reports, which often conflict with each other or themselves anyway.
A June, 2012 report by The Observers (a France 24 citizen journalism project) stated that "at least 199 people" were killed in "the “Deir Baalba massacre,” as it has come to be known." All their details came from two men funneled by "one of our oldest Observers in Homs." These are local activist "Abou Khaled" who described their findings, and a local man "Iyad, who says he narrowly survived a sub-massacre of about 30 people. Both are pseudonyms. 
The ACLOS study of the available reports and evidence, done under the victims section on the Talk Page, says about the same, with a collective, alleged death toll of at least 205-260. Broken down with links to the relevant sub-sections:
- Ambiguous days, April 2-April 6: 28-38 likely/possible massacre victims
- April 7: Al-Sheikh and Rajab and April 7: 13 Executed: at least 13, possibly 20 or more
- April 8: Found in a Barn: 16, 14 named, reportedly found April 12.
- April 8: 9 Women and Children: 9, maybe included in a later tally
- April 7/8? "Found days after": Total = at least 44 from a mass grave found on the 10th.
- April 10 Shelling: 14 likely massacre victims
- April 9?: April 11 Finds: Another mass grave on the 11th. Total = 65-66, after excluding a few already listed for the 7th.
- Later Finds: In 4 sub-groups, from April 13 to May 1, at least 53 more victims emerge.
- The massacre that almost went unnoticed: a survivor tells his story The Observers (France 24) June 7, 2012. CONTRIBUTORS: Abou Khaled, Iyad Homs