In my 34 years, and the vast majority of it living in a city, I have never once seen nor heard of anyone getting stopped for jay walking. It's painfully clear to me that this is an issue of an over aggressive cop looking to pick a fight because he thinks he can get away with it. It's also precisely why police should be required to video record every interaction they are involved with.
Luckily there is a video in this case and we can clearly see the cop wasn't in the wrong here.