When eight people died in a mass shooting at an Indianapolis FedEx facility Thursday night, the news was compounded by a string of similar incidents that preceded it.
Starting on March 16, when eight people were killed at three Atlanta-area spas, the US has had at least 45 mass shootings from California to Washington, DC.
CNN defines a mass shooting as a shooting incident that results in four or more casualties (dead or wounded), excluding the shooter or shooters.
April 15: Indianapolis
Eight people were killed and several others wounded in a mass shooting at an Indianapolis FedEx facility on Thursday night, Indianapolis Metropolitan Police Department spokeswoman Genae Cook said.
April 15: Pensacola, Florida
At least six people were injured at an Escambia County apartment complex, as reported by CNN affiliate WEAR-TV. No suspects are in custody.
April 15: Washington, DC
Four people were shot, including a teenage girl, Thursday in Northeast Washington, DC, affiliate WRC reported.
April 13: Baltimore
Police said a dice game turned violent when two shooters opened fire on a group, injuring four, according to CNN affiliate WJZ-TV.
April 12: Chicago
Four people were shot, one fatally, and a fifth person was hit by a car in a shooting early Monday on the Eisenhower Expressway, affiliate WMAQ reported.
April 11: Wichita, Kansas
One person was killed and three others injured in a shooting at a house party at an East Wichita Airbnb, as reported by CNN affiliate KWCH.
April 11: Seattle
A toddler and three other people were injured when suspects fired into a business parking lot, according to CNN affiliate KIRO 7.
April 10: Memphis, Tennessee
One person was killed and three others were injured, including a mother and child, after gunfire was exchanged in a Memphis neighborhood, according to CNN affiliate WHBQ.
April 10: Koshkonong, Missouri
One person was killed and three others injured in a shooting at a convenience store, according to CNN affiliate KY3.
April 10: Waterbury, Connecticut
Police responded to calls of a weapons complaint and found blood trails and four injured victims, reported CNN affiliate WFSB.
April 10: Allendale, Michigan
An incident outside a house party resulted in four people being shot and one critically injured, according to CNN affiliate WWMT.
April 9: Fort Worth, Texas
One person was killed and at least five others injured when people in two vehicles shot at each other on a Fort Worth, Texas, freeway Friday night, officials said.
April 8: Bryan, Texas
A gunman killed one person and wounded at least five others — four of them critically — at a cabinet manufacturer, police said.
April 7: Rock Hill, South Carolina
A former NFL player killed five people — including a prominent doctor, his wife and their two young grandchildren — before killing himself, authorities said.
April 7: Milwaukee
A 26-year-old man was charged with the shooting that killed two people and injured two others at a gas station, according to CNN affiliate WDJT.
April 6: Detroit
One person was killed and three others injured after gunfire erupted from a car, according to CNN affiliate WDIV.
April 5: Baltimore
Five victims were taken to a hospital with multiple gunshot wounds, Baltimore police said.
April 4: Monroe, Louisiana
Police responded to Bobo’s Bar, where they found six victims with gunshot wounds, according to CNN affiliate KNOE.
April 4: Birmingham, Alabama
An argument between two groups of men devolved into more than 30 shots fired at a park on Easter — killing a woman and wounding five other people, including four children, police said.
April 4: Beaumont, Texas
A man arrived at a home, threatening several people with a firearm before shooting four victims, according to Beaumont Police.
April 3: Wilmington, North Carolina
Three people were killed and four others injured in a mass shooting at a house party, according to CNN affiliate WECT.
April 3: Tuscaloosa, Alabama
Two men were arrested and charged with attempted murder after five people were injured during a shooting outside an Alabama bar, police said.
April 3: Dallas
In what police said was an apparent murder-suicide plot, 21-year-old and 19-year-old brothers made a pact to kill their parents, sister and grandmother, according to CNN affiliate KLTV.
April 3: Quincy, Florida
Seven people were injured by gunfire near a nightclub after a fight broke out into gunshots, according to CNN affiliate WCTV.
March 31: Orange, California
Four people, including a child, were killed and another person wounded in a mass shooting at an office complex in Orange, California, according to authorities.
March 31: Washington, DC
Five people were shot in Washington, the DC Police Department said. The incident started as a dispute and ended with two people dead and three injured.
March 28: Cleveland
Seven people were shot at a Cleveland nightclub, according to CNN affiliate WOIO. The victims, four men and three women, were all between 20 and 30 years old, and police believe several people fired inside the nightclub, the station reported.
March 28: Chicago
Four people in an SUV were shot on the I-57 expressway, according to CNN affiliate WLS. All were taken to hospitals in critical condition.
March 28: Essex, Maryland
A man fatally shot his parents before shooting three people at a convenience store, killing two of them, CNN affiliate WBOC reported, citing Baltimore County police. The suspect died by suicide.
March 27: Chicago
Four people were shot in Chicago’s South Austin neighborhood, according to CNN affiliate WBBM. The victims, who included men ages 42, 53 and 64, were near a sidewalk when they were shot, the station reported.
March 27: Yazoo City, Mississippi
At least seven people were injured in a mass shooting at a nightclub, CNN affiliate WLBT reported. At least six people were shot and another person suffered a laceration, the station reported.
March 27: River Gorge, Illinois
A shooting on a party bus left three people injured and one dead, according to CNN affiliate WLS. Police say the occupants of another vehicle fired at the bus while stopped at an intersection, the station reported.
March 26: Virginia Beach, Virginia
March 26: Chicago
A gathering in Chicago’s Wrightwood neighborhood turned into a mass shooting, according to CNN affiliate WLS. Two gunmen opened fire inside the gathering, wounding seven people and fatally shooting a 26-year-old man, the station reported.
March 26: Norfolk, Virginia
Police responded to a shooting that left four people wounded, CNN affiliate WTKR reported. The victims — two 18-year-old men, a 17-year-old girl and a 21-year-old woman — sustained non-life-threatening gunshot wounds.
March 26: Memphis, Tennessee
Five people were shot, the Memphis Police Department said on Twitter. Three victims were pronounced dead at the scene, two were taken to a hospital in critical condition, and one was in non-critical condition, the tweet said.
Michael Tucker, the man identified as the suspect, was found dead in a motel in Nashville Thursday. Police spokesman Don Aaron said it is believed Tucker died of a self-inflicted gunshot wound.
March 26: Philadelphia
Outside of the Golf and Social Club, police say two suspects shot seven people, CNN affiliate WPVI reported. Video released by police shows two suspects approaching a gathering crowd and opening fire.
March 23: Aliceville, Alabama
A shooting reported at an Aliceville home left two people dead and two injured, according to CNN affiliate WVTM.
March 23: Boulder, Colorado
Ten people, including a Boulder police officer, were killed in a shooting at a King Soopers supermarket, according to police.
March 20: Philadelphia
One person was killed and another five were injured in a shooting at an illegal party, CNN affiliate KYW reported. “There were at least 150 people in there that fled and believed they had to flee for their lives,” Philadelphia Police Commissioner Danielle Outlaw said.
March 20: Dallas
Eight people were shot, one fatally, by an unknown assailant, according to police.
March 20: Houston
Five people were shot after a disturbance inside a club, according to police. One was in critical condition after being shot in the neck, and the rest were in stable condition, according to CNN affiliate KPRC.
March 18: Gresham, Oregon
Four victims were taken to the hospital after a shooting in the city east of Portland, police said in an initial report.
March 17: Stockton, California
Five people who were preparing a vigil in Stockton, in California’s Central Valley, were shot in a drive-by shooting, the San Joaquin Sheriff’s Department said. None had life-threatening injuries.
March 16: Atlanta
Eight people, including six Asian women, were killed when a White gunman stormed three spas, police said.