OSLO, June 25: A gunman went on a terrifying rampage in a gay bar and surrounding streets in Oslo on Saturday, killing two people and seriously injuring 10 on the day the city's LGBTQ community was due to celebrate its annual Pride parade.

UVALDE, Texas, May 25: An 18-year-old gunman opened fire Tuesday at a Texas elementary school, killing at least 19 children as he went from classroom to classroom, officials said, in the deadliest school shooting in nearly a decade and the latest gruesome moment for a country scarred by a string of massacres. The attacker was killed by law enforcement.

BAGHDAD, Nov 9:  Unidentified gunmen killed at least 11 people and wounded eight others including soldiers in an attack on an Iraqi army post in western Baghdad, police sources and medics said on Monday.

Nov 18: Police in the California city of Fresno were investigating a mass shooting at a football game party on Sunday in which at least nine people were shot, killing several, with others left in critical condition, a police spokesman said.

Sept 2: A gunman who went on the rampage with an AR-type rifle in West Texas killed seven people and wounded 22 others, including a toddler who was shot in the face, before he was killed by police, authorities said on Sunday.

PHILADELPHIA,  Aug 15: A gunman who opened fire on police Wednesday as they were serving a drug warrant in Philadelphia, wounding six officers and triggering a standoff that extended into the night, is in police custody, authorities said.

PHILADELPHIA, August 15: At least one gunman opened fire on police Wednesday as they were serving a drug warrant in Philadelphia, wounding six officers and triggering a standoff that extended into the night, authorities said.

GILROY, Calif, July 30: Before a 19-year-old gunman opened fire on a famed garlic festival in his California hometown, he urged his Instagram followers to read a 19th century book popular with white supremacists on extremist websites, but his motives for killing two children and another young man were still a mystery Monday.

LAS VEGAS, July 3: The family of a woman killed by a gunman raining down gunfire from a Las Vegas high-rise hotel suite filed a wrongful death lawsuit Tuesday against eight gun makers and three dealers arguing their weapons are designed in a way that could be easily modified to fire like automatic weapons.

POWAY, April 28: A 19-year-old gunman opened fire inside a synagogue near San Diego as worshippers celebrated the last day of a major Jewish holiday, killing a woman and wounding the rabbi and two others Saturday, authorities said.

SAO PAULO, Dec 12: Five people were killed and several others injured as a gunman opened fire during a mass at a Catholic cathedral in Campinas outside of Brazil’s most populated city, Sao Paulo. The perpetrator then turned the gun on himself.

STRASBOURG, Dec12: A gunman on a security watchlist killed three people and wounded a dozen others near the picturesque Christmas market in the historic French city of Strasbourg on Tuesday evening before fleeing.

PITTSBURGH, Oct 28:  A gunman who’s believed to have spewed anti-Semitic slurs and rhetoric on social media barged into a Pittsburgh synagogue on Saturday and opened fire, killing 11 people in one of the deadliest attacks on Jews in U.S. history.

BAKERSFIELD, Sept 13: A gunman killed five people, including his wife, before turning the gun on himself as a Kern County sheriff’s deputy closed in Wednesday, authorities said.

TEXAS, July 29: Five people were shot dead, including the suspected gunman, in a Friday night attack at a Texas nursing home and the home of one of the people slain, city officials said.

TORONTO, July 23: A gunman ‘dressed in black’ injured at least nine people in a mass shooting on the streets of Toronto in Canada before shooting himself dead.

MILAN, Feb 4: An Italian gunman with extreme right-wing sympathies shot and wounded six African immigrants Saturday in a two-hour drive-by shooting spree, authorities said, terrorizing a small Italian city where a Nigerian man had been arrested days earlier in a teenager’s gruesome killing.

CAIRO, Dec 30: A gunman on a motorcycle opened fire Friday outside a church in a Cairo suburb and at a nearby store, sparking a shootout that killed at least nine people, including eight Coptic Christians, authorities said. It was the latest attack targeting Egypt’s embattled Christian minority.

GORKHA, Nov 8: Political parties involved in the democratic alliance have demanded legal action against the gunman arrested in Bhimsen Rural Municipality in Gorkha.

SUTHERLAND SPRINGS, TEXAS, Nov 7: The gunman who killed 26 people at a small-town Texas church had a history of domestic violence and sent threatening text messages to his mother-in-law, a member of First Baptist, before the attack, authorities said Monday.

LAS VEGAS, Oct 4: The Las Vegas gunman transferred $100,000 overseas in the days before the attack and planned the massacre so meticulously that he even set up cameras inside the peephole of his high-rise hotel room and on a service cart outside his door, apparently to spot anyone coming for him, authorities said Tuesday.

PARIS, April 22:  The gunman who shot and killed a police officer on the famed Champs-Elysees just days before the French presidential vote spent 14 years in prison, including for attacking other officers, Frances's anti-terrorism prosecutor said Friday — a lengthy criminal history that gave a jolt to an already nail-biting election and fueled growing security concerns.

SAN BERNARDINO, CALIFORNIA, April 11: A special education teacher and one of her students were fatally shot by her estranged husband when he opened fire with a high-caliber revolver before killing himself in her classroom at a San Bernardino, California, elementary school, police said.

BURLINGTON, Wash., Sept 24: Police searched Saturday for a gunman authorities said opened fire in the makeup department of a Macy's store at a mall north of Seattle, killing four females and one man, before fleeing toward an interstate on foot.