Absence of screaming is very odd.

A housekeeper is reported to have heard "lots of shots" but "no screaming". [+] I find that very odd... it occurred to me that the students could have been made unconcious somehow first-- this would explain no screaming-- in the shock of shooting-- wouldn't girls especially scream like crazy? Wouldn't a human body spontaneously go into screaming mode in horror? This is a very odd thing... no screams. Very very odd. Makes no sense to me.