2 dead, 17 injured in Kentucky school shooting; suspect held

Marshall County High School students are escorted to retrieve their vehicles by emergency responders after a deadly shooting at the school in Benton, Ky., Tuesday, Jan. 23, 2018. (Ryan Hermens/The Paducah Sun via AP)
Family members escort their children out of Marshal North Middle School near Palma, Ky., Tuesday, Jan. 23, 2018, after being transported from the Marshal High School. The students of the high school were transported to the middle school to be picked up by family members after a shooting. (AP Photo/Stephen Lance Dennee)
Emergency crews respond to Marshall County High School after a fatal school shooting Tuesday, Jan. 23, 2018, in Benton, Ky. Authorities said a shooting suspect was in custody. (Ryan Hermens/The Paducah Sun via AP)
Map locates School Shooting, Marshall County, Kentucky.; 1c x 2 inches; 46.5 mm x 50 mm;
Emergency crews respond to Marshall County High School after a fatal school shooting Tuesday, Jan. 23, 2018, in Benton, Ky. Authorities said a shooting suspect was in custody. (Ryan Hermens/The Paducah Sun via AP)
Emergency crews respond to Marshall County High School after a fatal school shooting Tuesday, Jan. 23, 2018, in Benton, Ky. Authorities said a shooting suspect was in custody. (Ryan Hermens/The Paducah Sun via AP)
Emergency crews respond to Marshall County High School after a fatal school shooting Tuesday, Jan. 23, 2018, in Benton, Ky. Authorities said a shooting suspect was in custody. (Ryan Hermens/The Paducah Sun via AP)
UPDATES TO REMOVE NUMBER OF PEOPLE INJURED - Police escort a person, second from right, out of the Marshall County High School after shooting there, Tuesday, Jan 23, 2018, in Benton, Ky. Gov. Matt Bevin said two people were killed numerous others were injured in the shooting. (Dominico Caporali via AP)
Kentuckty State Police Lt. Michael Webb speaks during a media briefing at the Marshall County Board of Education following a shooting at Marshall County High School in Benton, Ky., Tuesday, Jan. 23, 2018. A couple of students were killed and others injured Tuesday morning at Marshall County High School when a 15-year-old classmate opened fire. (Ryan Hermens/The Paducah Sun via AP)
Shannon Duffy walks her daughter Lyra, center and son Kalessin, right, out of Marshal North Middle School near Palma, Ky., Tuesday, Jan. 23, 2018, after a school shooting at Marshal County High school. The students of the high school in nearby Draffenville were transported to the middle school to be picked up by family members after a shooting at the high school. (AP Photo/Stephen Lance Dennee)

BENTON, Ky. — A 15-year-old student killed two classmates and hit a dozen others with gunfire Tuesday, methodically firing a handgun inside a crowded atrium at his rural Kentucky high school.