Office buildings. Hospitals. Courthouses. Schools. No place is sacred or safe when it comes to mass violence.
Now two fast-food restaurants in Wilkinsburg have joined the list of public places bloodied by multiple shootings.
Other instances of mass violence in the past three years:
Dec. 30, 1999 -- Silvio Layva, an employee of the Radisson Bay Harbor Inn in Tampa, Fla., which was packed with college football fans there for the New Year's Day Outback Bowl, shot and killed four co-workers. He killed a fifth person who tried to escape.
Nov. 3, 1999 -- Kevin Cruz, a former employee at Seattle's Northlake Shipyard, is believed to have killed two men and wounded two others at the shipyard, escaping arrest for more than two months.
Nov. 2, 1999 -- Byran Uyesugi, a disgruntled Xerox Corp. repairman in Honolulu, shot and killed seven co-workers at the company's office there.
Sept. 15, 1999 -- Seven people were killed and seven wounded at Wedgwood Baptist Church in Fort Worth, Texas, by gunman Larry Gene Ashbrook, who then committed suicide.
Sept. 14, 1999 -- Violence in the West Anaheim Medical Center in southern California left three employees dead when a man said to be angered by his mother's death at another hospital opened fire.
Aug. 10, 1999 -- Five people were wounded at North Valley Jewish Community Center in Los Angeles, followed by the fatal shooting of a Filipino-American postal worker. White supremacist Buford Furrow Jr. was charged with murder and attempted murder.
Aug. 5, 1999 -- Alan Miller opened fire at two companies where he once worked in a Birmingham, Ala., suburb, killing three people at Ferguson Enterprises and York Heating.
uly 29, 1999 -- A securities day trader in Atlanta who suffered heavy financial losses went on a shooting rampage, killing nine people at brokerage firms in two office buildings and wounding 12. Mark O. Barton then killed himself.
July 2, 1999 -- White supremacist Benjamin Nathaniel Smith went on a three-day drive-by shooting spree in Illinois and Indiana, targeting blacks, Jews and Asians. He killed two and wounded nine before killing himself.
April 20, 1999 -- Teen-agers Dylan Klebold and Eric Harris stormed Columbine High School in Littleton, Colo., with pipe bombs and guns. Fourteen students, including the attackers, and one teacher were killed; 23 students were wounded.
July 24, 1998 -- Russell Weston Jr. opened fire in the U.S. Capitol Building, killing a security guard, wounding another and also shooting a female visitor before being shot by Capitol police.
May 21, 1998 -- High-school student Kip Kinkel shot and killed two classmates and wounded 24 others in Springfield, Ore. He was sentenced to 112 years in prison.
April 24, 1998 -- Eighth-grader Andrew Wurst shot and killed a teacher at a dance in Edinboro, Erie County, and wounded three others. He was sentenced to 30 to 60 years in prison.
March 24, 1998 -- Four girls and a teacher were killed and 10 students were wounded outside a Jonesboro, Ark., middle school after an attack led by students Mitchell Johnson and Andrew Golden.
Feb. 5, 1998 -- A gunman targeted a boxer being treated at the Washington Cancer Institute in Washington, D.C., killing him and wounding four others in the facility.
Dec. 1, 1997 -- West Paducah, Ky., was the scene of school violence when Michael Adam Carneal drew a pistol from his backpack and opened fire on a prayer circle, killing three fellow students and wounding five.
Oct. 1, 1997 -- Teen-ager Luke Woodham used a hunting rifle to kill his girlfriend and her classmate and injure seven other students during a shooting spree at a Pearl, Miss., high school.
Feb. 28, 1997 -- Two men who bungled a bank robbery unloaded their assault weapons in broad daylight as they fought a running battle with policein North Hollywood, Calif. Ten police officers were injured and the robbers were killed.