#1 Uber's attempt at self-driving cars was practically a joke from the getgo, so this isn't surprising outcome whatsoever. Most me-too attempt we've ever witnesses in business. Google is lightyears ahead of everyone else in this business.
#2 Arizona police are already saying it's not Uber's fault. Whatever. Might be true, accidents happen, but again, considering Google has millions more miles driven than Uber, and without humans able to "take teh wheel", it's not surprising this fate occured to uber first despite the much much lower odds (due to less miles driven).