At least 14 people were killed and 21 others injured in a mass shooting Wednesday in San Bernardino, California, when multiple “heavily armed” gunmen opened fire at the Inland Regional Center, a care facility for people with developmental disabilities.
In the sixth mass shooting on American soil in just the past seven days, victims were killed by multiple masked shooters who entered the building just after 11am local time, dressed in tactical gear and armed with what police described as “long guns, not handguns.” According to San Bernardino police chief Jarrod Burguan, the shooters “came prepared to do what they did, like they were on a mission.”
With a total of 14 fatalities, Wednesday’s attack ranks as the the worst mass shooting on U.S. soil since the massacre at Sandy Hook Elementary School in 2012, when a lone gunman killed his own mother and then gunned down 26 children and teachers in their classrooms. It also ranks as the sixth deadliest mass shooting since record-keeping began in 1949, according to data compiled by Mother Jones and confirmed in a second analysis by CNN.
Here’s a breakdown of the top ten deadliest mass shootings in U.S. history:
Although the massacre in San Bernardino ranks as the deadliest in recent history, it’s far from the only mass shooting we’ve seen over the past several years. In fact, it wasn’t even the only mass shooting that took place on Wednesday: Earlier in the day, a gunman opened fire in Savannah, Georgia, killing a woman and sending three men to the hospital.
According to the Mass Shooting Tracker, a crowdsourced project maintained by the tongue-in-cheek subreddit r/GunsAreCool, Wednesday’s mass shootings marked the 354th and 355th this year — meaning that we are averaging more than one mass shooting a day in the U.S. The tally only counts incidents in which four or more people, including the gunman, are killed or injured by gunfire.
The number of mass shootings so far this year has already surpassed the total number of mass shootings in 2014, according to the Reddit tracker. The pace is also well above 2013’s pace, when a total of 363 mass shootings occurred. So if it seems like mass shootings are becoming more common, it’s because they are: According to a recent Harvard University study based on 30 years of mass shooting data, the rate of mass shootings in the U.S. has tripled since 2011. An FBI report released last year showed nearly identical findings.