I know it's not even in the same league, but we've got a serious problem right now near where I live with bus stop glass being smashed. Someone appears to have got a hammer from a bus/coach and goes around popping the corner of bus shelter glass.
There are probably now approaching 40 panels smashed since the summer (covering about 10 different stops). Possibly more, as I obviously can't see them all and some may get fixed before I even notice. I've been in Berlin for 24 hours and came back to another glass pane smashed, so that's about one bus stop being hit every few days.
I spoke to someone who witnessed two lads (14-16 years old) 'popping' one, but because he fears they saw him, he won't report it to the police. I emailed the police officer who supposedly patrols this area to ask about increasing patrols, and didn't even get a reply!
Ultimately, the police have next to no chance of catching people doing this sort of thing unless they get real lucky. But I hope that if the police are contacted, they will at least make some attempt to show interest in the case of a train being shot at.