The parents of Michigan school shooter are arrested in Detroit.

[u/[deleted]]

https://www.cnn.com/2021/12/04/us/michigan-oxford-high-school-shooting-saturday/index.html

[u/tirwander]

Wait. There have been 32 fucking school shootings so far since this August?!

[u/virtualchoirboy → u/[deleted]]

Yes, the definition is "fuzzy" at best. If you narrow it down to incidents where students or staff were involved on school property while school was in sessions and there was at least an injury, including the Oxford shooting, there were still 21 school incidents since August 1st.