Agreed.
One thing I've not read about and I'm sure I just missed it, but how did he get into the school?? It sounded like he was NOT a student there right?
The whole thing seems so strange.
If he's not a student. Then how did he get into the school, not to mention how did he get a rifle that typically has a 16"-20" barrel and would be around 36" or so in total length. Now he could have broken down the rifle into the main two pieces being the lower and upper receiver, but you'd still have 2 pieces. they could be put into a backpack but then again how did he get into the school?
If he was a student, then maybe it's easier and he broke the rifle down and assembled in a bathroom?