In a respite from years with nation-wrenching mass killing incidents, the United States is on track to record the lowest level of such deadly events in two decades, according to one group of researchers tracking the data.

There have been 17 mass killings, 14 of which involved guns , recorded this year, according to a database maintained by Northeastern University, in partnership with the Associated Press and USA Today. While that number could increase in December, it is the lowest since the database was established in 2006. And it represents a significant drop from recent years – including 2023, which saw more than three dozen such incidents.

Northeastern’s database tracks incidents in which four or more people were killed intentionally, excluding the assailant, in a 24-hour period. Mo

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