Oh shit, @MickZagger I found the article! http://www.oregonlive.com/portland/index.ssf/2017/04/portland_cycling_activist_says_he_was_assaulted.html
Sounds like he deserved it. Bicyclists are supposed to behave like automobiles, yet many times they'll ride down the wrong side of the road, and just fly through intersections, then wonder why a car making a right hand turn had to slam on their breaks to miss them. Swinging a bike lock at someone like that could also be considered a serious crime.
I took an article about an Uber driver punching a cyclist and altered a few details, including the link to the actual article.