Aurora, Colorado
20/07/2012

A gunman, suspected to be James Holmes, 24, opened fire at a movie theatre, killing 12 people and wounding 58. He is in police custody and facing trial.
Oakland, California
2/4/2012

Former student One L Goh, 43, allegedly opened fire in a classroom at Oikos University, killing seven people. He is in police custody.
Seattle, Washington
30/05/2012

Ian Stawicki, 40, shot dead four patrons at a cafe, and another person during a carjacking nearby, before turning the gun on himself.
Tucson, Arizona
8/1/2012

Jared Lee Loughner, 22, allegedly shot Democratic Congresswoman Gabrielle Giffords in the head as she met with voters at a supermarket. Six other people were killed and 11 wounded. He has pleaded not guilty over the attack.
Seal Beach, California
12/10/2011

Scott Dekraai, 41, allegedly opened fire at a hair salon where his former wife worked, killing eight people and wounding one. Dekraai has pleaded not guilty in the case.
Fort Hood, Texas
5/11/2009

Army psychiatrist Nidal Hasan, 39, allegedly shot 37 people at an army base. Thirteen people died in the rampage, the worst ever on an American military base. Hasan will face a military court in August, 2012.
Binghamton, New York
3/4/2009

Jiverly Wong, 41, fatally shot 13 people and wounded four others at an immigration services centre, before killing himself.
Geneva, Alabama
10/3/2009

Michael McLendon, 28, shot 16 people, 10 of whom were killed, during a rampage in the regions of Coffee and Geneva counties. He died in a police shoot-out at the scene.
DeKalb, Illinois
14/02/2008

Steven Kazmierczak, 27, a former student of the Northern Illinois University, opened fire in a lecture hall. He killed five people and wounded 18 others before committing suicide.
Omaha, Nebraska
5/12/2007

Robert Hawkins, 19, opened fire at a shopping mall, killing eight people and wounding five before taking his own life.
Blacksburg, Virginia
16/04/2007

Seung-Hui Cho, 23, fatally shot 32 people and wounded 17 in two attacks at the Virginia Tech University before taking his own life. It was the deadliest mass shooting in modern US history.
Nickel Mines, Pennsylvania
2/10/2006

Milk truck driver Charles Carl Roberts, 32, shot five Amish girls at a one-room schoolhouse. He killed himself as police approached.
Red Lake, Minnesota
21/03/2005

School student Jeffrey Weise, 16, killed nine people at two locations before killing himself. The victims included his grandfather and his grandfather's companion, both shot at home, and then five students, a teacher and a security guard at Red Lake High School.
Fort Worth, Texas
15/09/1999

Larry Gene Ashbrook, 47, opened fire inside the Wedgwood Baptist Church, killing eight people before taking his own life.
Atlanta, Georgia
29/07/1999

Mark Barton, 44, killed nine people in shootings at two brokerage offices, then committed suicide.
Littleton, Colorado
20/04/1999

Columbine High School students Eric Harris, 18, and Dylan Klebold, 17, opened fire on their peers, killing 13 people and wounding 26 before taking their own lives.
Springfield, Oregon
21/05/1998

Kipland Kinkel, 15, fatally shot his parents and then opened fire on a school, killing two students and wounding 22 others. He was sentenced to life in prison.
Jonesboro, Arkansas
24/03/1998

Young students Mitchell Johnson, 13, and Andrew Golden, 11, opened fire at their school. Four students and a teacher were killed and 10 others were injured. The pair were incarcerated in a juvenile facility until they turned 21.
Garden City, New York
7/12/1993

Colin Ferguson, 34, fatally shot six passengers and wounded 19 others on a Long Island Rail Road commuter train before being stopped by other riders. He was later sentenced to life in prison.
San Francisco, California
1/7/1993

Gi­an Luigi Ferri, 55, killed eight people in an of­fice build­ing in San Fran­cisco's fin­an­cial dis­trict. He fatally shot himself after encountering police.
Iowa City, Iowa
1/11/1991

Gang Lu, 28, a graduate student in physics from China, shot four people to death at the University of Iowa before killing himself.
Killeen, Texas
16/10/1991

George Hennard, 35, drove his truck through a window at a Luby's Cafeteria and opened fire, killing 23 people and wounding 22 people before turning the gun on himself.
Jacksonville, Florida
18/06/1990

James Edward Pough, 42, shot dead nine people and injured four others at a General Motors Acceptance Corp office, one day after he killed a prostitute and her pimp and robbed a convenience store. He committed suicide after the GM attack.
Newtown, Connecticut
12/14/12

A gunman killed 20 young children and seven adults at the Sandy Hook Elementary School in Newtown, Connecticut.