Weren't these people mostly emergency responders? Like doctors and EMTs? And yes, killed several, but also injured thousands? I'm a little concerned by the vocabulary used in the op title.
https://www.reuters.com/world/middle-east/pagers-drones-how-...
It seems likely that a significant number of the thousands injured were Hezbollah militants. How significant? We’ll have to wait for the numbers.
I haven’t seen any indication that the exploding pagers were held by emergency responders in a significant quantity. Do you have a source for that?