While experts are also divided on why murders spiked in 2020 and 2021, there are three broad explanations they typically point to:
The pandemic. Covid disrupted every aspect of life in the past two years. Social services and supports that help keep crime down vanished overnight. Schools could no longer keep unruly teens safe and distracted. A broader sense of disorder and chaos could have fueled a so-called moral holiday, in which people disregard laws and norms.
A weakness for this theory is timing: The murder spike took off in May and June 2020, months after Covid began to spread in the U.S. Other countries didn’t experience similar spikes during the pandemic.
But that doesn’t rule out the pandemic’s role. There could have been something specific to America’s pandemic response that led to more deadly violence, which could have taken months to emerge.
Changes in policing. The fallout from the 2020 racial justice protests and riots could have contributed to the murder spike. Police officers, scared of being caught in the next viral video, may have pulled back on proactive anti-violence practices. More of the public
lost confidence in the police, possibly reducing the kind of cooperation needed to prevent murders. In extreme circumstances, the lack of confidence in the police could have led some people to take the law into their own hands — in acts of street or vigilante violence.
The timing supports this theory, with homicides
rising unusually quickly shortly after George Floyd’s murder and the ensuing protests. Killings also spiked in 2015 and 2016, after protests over policing during those years.
More guns. Americans
bought many more guns in 2020 and 2021 than they did in previous years. The guns purchased in 2020 also
seemed to be used in crime more quickly than firearms bought in previous years. And Americans seemed
more likely to carry guns illegally in 2020. In short: Americans had more guns, and were possibly more likely to carry and use them.
Research generally shows that where there are more guns, there is more gun violence.
These three factors could have also played into each other. The pandemic might have driven more people to violence, but the police might have been able to prevent at least some of that violence if they had remained proactive or had worked better with the public. Without so many guns, what violence did occur could have ended up less deadly.
“All three played a role,” Richard Rosenfeld, a criminologist at the University of Missouri-St. Louis, told me. “What’s difficult is to assign priority to one compared to the others.”