officer went outside the police station to investigate a banging noise that was coming from his office window
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So the kid was banging on the police station window? Maybe he wanted help, even though he was messed up?
ha! Maybe colleges could use this:
CODA All-Purpose Net Gun
Capture anything from birds to elk with this powerful net gun. Powered by a blank 308 military cartridge (supplied), it swiftly projects a net over your target animal. Ideal where you need to instantly immobilize an animal. May be used alone or in conjunction with chemical capture equipment. Supplied complete with two nets (sized to your requirements), two canisters, padded weights, advanced recoil system, tool kit, instructions, and 100 cartridges. Optional Carry Case recommended. The U.S. federal government classifies the CODA Net Gut as a “tool,” not as a firearm.
That does sound like a possibility. (I'm glad someone else said it first.) The article says he was "acting erratically"; he "repeatedly charged" and "rushed in a threatening manner..." That sounds like he never made physical contact.
Maybe he intended to do harm. Or maybe not. Were there no other witnesses?