School shooter claims he heard voices telling him to massacre the school.

KILLER SHACKLED AND COWERING...
FBI WAS WARNED...
TROUBLED EX-STUDENT...
"EVERYONE PREDICTED IT"...
Dangerous creep...
UPDATE: Local law enforcement says NO TIES to white nationalist group...
MOM FLU DEATH SENT OVER EDGE?
Lawyer: "Broken Child"...
Football Coach Acted As Human Shield...
LIST: VICTIMS...
Granny Stops ANOTHER School Shooting...
RUBIO: If someone wants to kill, they"ll find a way...
TRUMP ADDRESSES GRIEVING NATION...
Plans School Visit...