A Police vehicle passes by a sign in Windsor, Oregon on October 2, 2015, showing support for the victims of a mass shooting that took place a day earlier in Roseburg.

A girl prays during a vigil in Roseburg, Oregon on October 1, 2015, for the victims of a shooting at Umpqua Community College.

A man holds his sons during a vigil in Roseburg, Oregon on October 1, 2015, after the mass shooting at Umpqua Community College.

The shooter -- identified as Chris Harper Mercer, 26 -- opened fire in a classroom at Umpqua Community College in rural Roseburg, then moved to other rooms methodically gunning down his victims, witnesses said.

People hold candles during a vigil following a mass shooting at Umpqua Community College in Roseburg, Oregon, October 1, 2015.

It was the latest mass shooting to rock the country.

Hundreds of people gather for a vigil in Roseburg, Oregon on October 1, 2015, for the victims of mass shooting at Umpqua Community College in Roseburg.

Police officers stand guard outside the apartment building where the alleged gunman, Chris Harper Mercer, lived in Winchester outside Roseburg, Oregon, on October 2, 2015.

The rampage on October 1 at Umpqua Community College left 10 dead, including the gunman, and shattered a close-knit rural community in the south of the state.

Douglas County Deputy Sheriff Greg Kennerly, left, and Oregon State Trooper Tom Willis, stand guard outside the apartment building, Friday, October 2 2015, where Umpqua Community College gunman Chris Harper Mercer lived, in Roseburg, Ore.

Armed with multiple guns, Harper, 26, walked into a writing class at the community college, Thursday, and opened fire.

An undated photo posted to a dating website shows Chris Harper Mercer, identified as the shooter, in the killings at Umpqua Community College in Roseburg, Oregon on October 1, 2015

Friends and family are reunited with students at the local fairgrounds after a deadly shooting at Umpqua Community College, October 1, 2015.

President Barack Obama delivers a statement about the deadly shooting at Umpqua Community College in which he said, "Our thoughts and prayers are not enough," at the White House in Washington, D.C. on October 1, 2015.

A visibly angry President Obama made an impassioned plea for gun control in the wake of the shooting, blasting Congress for its failure to act in the face of "routine" mass killings.

Hannah Miles, center, is reunited with her sister Hailey Miles, left, and father Gary Miles, right, after a shooting at Umpqua Community College in Roseburg, Oregon on Thursday, October 1, 2015.

A bullet casing is marked at the scene of a deadly shooting at Umpqua Community College in Roseburg, Oregon on Thursday, October 1, 2015.

Douglas County Sheriff John Hanlin addresses the media following the deadly shooting at Umpqua Community College in Roseburg, Oregon, Thursday, Oct. 1, 2015.

The first 911 calls were reported at 10:38 a.m. and the college was locked down as law enforcement agencies responded.

A patient is wheeled into the emergency room at Mercy Medical Center following the shooting, October 1, 2015.

Medical workers assist a shooting victim on a stretcher at Mercy Medical Center, October 1, 2015.

Paramedics return to their ambulances after delivering patients to Mercy Medical Center in Roseburg, October 1, 2015.

A shooting at Umpqua Community College had ambulances from multiple agencies delivering victims to Mercy.

Friends and family are reunited with students at the Douglas County Fairgrounds after a mass shooting at Umpqua Community College, in Roseburg, Thursday, October 1, 2015.

Umpqua Community College alumnus Donice Smith (L) is embraced after she said one of her former teachers was shot dead, near the site of a mass shooting at Umpqua Community College in Roseburg, Oregon on October 1, 2015.

Friends and family are reunited with students at the local fairgrounds after a deadly shooting at Umpqua Community College, in Roseburg, Oregon on Thursday, October 1, 2015.

People gather at a road block near the entrance to Umpqua Community College in Roseburg, Oregon on October 1, 2015, following a deadly shooting at the campus.

Virginia Roth from the Red Cross posts signs at the Douglas County Fairgrounds where students and staff from Umpqua Community College were evacuated following a deadly shooting on campus, October 1, 2015.

Students, staff and faculty are evacuated from Umpqua Community College in Roseburg, Oregon after a deadly shooting Thursday, October 1, 2015.

Students and staff evacuated from the scene were taken to the Douglas County Fairgrounds, October 1, 2015.

Students and staff evacuated from the scene were taken to the Douglas County Fairgrounds, October 1 2015.

A blockade around the school is in effect as students are bused to the Douglas County Fairgrounds, October 1, 2015.

Authorities respond to a report of a shooting at Umpqua Community College in Roseburg, Oregon, Thursday, October 1, 2015.

Authorities check bags as students and staff are moved off campus at Umpqua Community College after a shooting, October 1, 2015.

Authorities check bags as students and staff are moved off campus at Umpqua Community College after a shooting, October 1, 2015.

A Google Street View image of Umpqua Community College in Roseburg, Oregon.

A Google Earth view of Umpqua Community College.