Massacre or what?
Mercaz HaRav massacre not enough dead Oboler and NoCal100says.

Is 10 a "large number"? I personally think not. In which case this should be renamed to "incident" or "attack" or similar. Otherwise any terrorist attacks that kill 10 or more people should likewise be listed as a "massacre". Wikipedia will quickly fill up with "massacres" diluting those that really are massacre of large numbers of people.    
Agree. Renaming, per the discussion here NoCal100 (talk) 
original here

And Arutz Sheva only call it attack: 
Ynet  attack 
Israeli Ministry of Foreign affairs Shooting:
 Jpost attack: 
Israel insider attack: 

In fact one only has to look at the references supplied in the article itself to see that attack is the most prevalent description, I'm astounded that Oboler found time to search out an obscure tiny article when the Mercaz HaRav attack was one of the reasons behind the racist group JIDF, which Oboler aids. One would have thought that the Mercaz HaRav attack would have caught Oboler's attention first?

Dead link live link to same article see also Ha'aretz Seven students remain hospitalized after shooting 

surprisingly the only source for massacre is wiki.????????????????????????????????????