The post states "I will shoot up the school Thursday September 30th. Whoever reads this, this is good warning this is not a joke this is an active threat."
Harris County Sheriffs officials received reports this morning of an active shooter situation at Santa Fe High School. At least eight have been killed.
Governor Matt Bevin has confirmed that one person has been killed while several others have been wounded in a Tuesday morning shooting at Marshall County High School in Benton, Kentucky.
There has reportedly been a shooting at Umpqua Community College in Roseburg, Oregon, in which at least 10 people were killed, with some outlets reporting a death toll of as high as 15. The suspect is in custody. It's unclear if he or she was injured.