At least four people were killed and eight others injured in a mass shooting on Sunday in Grand Blanc Township, when a 40-year-old man crashed a truck into a church chapel and fired at the congregation with an assault rifle. The incident was one of a dozen mass shootings in Michigan this year and the deadliest among six mass shootings reported in the U.S. last weekend.

The number of mass shootings peaked in Michigan and across the country in 2021 during the COVID-19 pandemic. As of Sept. 28, there have been 324 mass shootings this year in the U.S., according to the Gun Violence Archive.

There's no single consensus on the definition of a mass shooting. The Gun Violence Archive (GVA), a nonprofit research group, defines a mass shooting as an incident where four or more people are injur

See Full Page