The article says they were shooting into the air
https://arstechnica.com/tech-policy/2015/09/more-california-...
It was fiber optic cable so you can't blame copper theft as the motive, sabotage was clearly intended.
In this case, Oakland being Oakland, it could just as well have been hoodlums trying to show off their marksmanship.
It very well could be. But, people who steal things often do so hastily.
You shoot into the air and what goes up must come down. And still has velocity.
https://www.theguardian.com/uk-news/2022/jan/21/british-man-...