killed him in response. he shot and killed horrifically, incomprehensibly 14 students and killed a teacher. mr. ro mas, the shooter, he himself is deceased. and is believed that responding officers killed him. abbott says the suspect allegedly shot and killed his grandmother before going on this school shooting rampage. we re going to show you live pictures of the area. at this moment, the police chief says family members are still being notified, the horrific process that s played out in school shootings before. this particular mass murder come after the buffalo rampage which was previously the deadliest shooting of this year. americans mourning once again. we can also tell you that president biden will address the nation tonight as the country continues reeling. we will bring you the facts as well as perspective in this hour of coverage. we begin with former assistant fbi director who has been covering this for us and jim cavanaugh, retired special agent in charge. and