How many needed to? If only people had the means to share information with each other.
A whole classroom of children was left at the mercy of this guy for an hour. I don't care how anyone tries to spin it, that is the bottom line. They knew there were children in that room. They left them to die.
No he is not. There were all the 911 calls begging for help. Pretty clear to me…How do you now they knew? You're presenting an assumption without evidence.