yep -if you feel the need for murder/suicide, start with the suicide part first.
There's a special place in hell for people that do things like this (I'm sure they had mental issues, but they know what they're doing when they're doing it, so no free pass from me like some people always are ready to hand out in a case like this).
RIP to those pour little souls taken away (and the adults too, of course) and best wishes to those left behind.