So much for Locking Doors if they are glass...This was about as unforeseeable an event as law enforcement will ever encounter. The one good change that will result from this incident is that schools and churches that haven't done so will quickly upgrade their doors. If Covenant had installed reinforced mesh glass doors, she could have blown out the glass and set off an alarm, but the police would have arrived before she ever got into the building.
IMO, if this person truly wanted to die (commit suicide), it would of shot itself. one murder, itself, done, but since this deranged mentally ill confused person planned to take out others, especially young children, cancels their suicide statement, it did not even have the guts to take it's own life. It will go down in history as a coward, nothing more.