At scene of a mass stabbing-turned-officer-involved shooting in Montgomery County, Md. We are told a man stabbed four victims, before confronting officers with a 12-inch butcher knife.

Source: https://dailycaller.com/2023/07/22/suspect-stabs-four-unprovoked-shot-dead-police-unique-thrift-store-maryland/

He shot at the wall "to show he was serious" then stabbed the mattress with a large butcher knife and again threatened to kill them both, according to the DA's office.

Source: https://www.denver7.com/news/front-range/broomfield/das-office-declines-to-file-criminal-charges-against-broomfield-homeowner-who-stabbed-intruder-to-death