Photo gallery: Ohio State University attack

Police cover the body of a suspect outside Watts Hall on the campus of Ohio State University in Columbus, Ohio, following an attack on campus that left several people injured Nov. 28, 2016.

Ohio State University President Michael Drake, second from left, and Dr. Andrew Thomas, chief medical officer at the Wexner Medical Center, walk toward a news conference following an attack on campus Nov. 28, 2016.

Ohio State University students duck under police tape after a shelter-in-place notification was lifted following an attack on campus Nov. 28, 2016.

Members of of SWAT team walk up the steps of a parking garage in response to an attack on the campus of Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Student Nicholas Flores reacts to an attack on the campus of Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Students walk on campus at Ohio State University as police respond to an attack Nov. 28, 2016, in Columbus, Ohio.

Law enforcement officers work around a parking garage in response to an attack on the campus of Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Students leave buildings as police respond to an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

A car inside a police line sits on the sidewalk as authorities respond to an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Police respond to reports of an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Police respond to an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Students leave buildings surrounding Watts Hall as police respond to reports of a shooting on campus at Ohio State University on Nov. 28, 2016, in Cincinnati.

Law enforcement patrols outside a parking garage after an attack on the campus of Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Students leave buildings as police respond to an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Members of the Columbus SWAT team work the scene around a parking garage after reports of an attack on the campus of Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

SWAT teams and police respond to reports of an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Law enforcement officials are seen outside a parking garage on the campus of Ohio State University as they respond to an active attack in Columbus, Ohio, on Nov. 28, 2016.

Law enforcement officials are seen outside a parking garage on the campus of Ohio State University as they respond to an active attack in Columbus, Ohio, on Nov. 28, 2016.

Law enforcement officials are seen outside a parking garage on the campus of Ohio State University as they respond to an active attack in Columbus, Ohio, on Nov. 28, 2016.

Law enforcement officials are seen outside a parking garage on the campus of Ohio State University as they respond to an active attack in Columbus, Ohio, on Nov. 28, 2016.

A law enforcement official motions for people to leave the area outside a parking garage on the campus of Ohio State University as they respond to an active attack in Columbus, Ohio, on Nov. 28, 2016.

Police secure an area on the Ohio State University campus Nov. 28, 2016, in Columbus, Ohio.

Police secure an area on the Ohio State University campus Nov. 28, 2016, in Columbus, Ohio.

Police respond to reports of an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Police respond to reports of an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Police secure an area on the Ohio State University campus Nov. 28, 2016, in Columbus, Ohio.

Police secure an area on the Ohio State University campus Nov. 28, 2016, in Columbus, Ohio.

An officer blocks the scene as police respond to reports of an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.

Police respond to reports of an attack on campus at Ohio State University on Nov. 28, 2016, in Columbus, Ohio.