The LA cop story is another violent US news story that went absolutely global.
Right after the president's State of the Union Speech, the shootout and fire at Big Bear was a second or third story, behind the president and the pope, on international TV newscasts, including the BBC, NHK from Tokyo, Al Jazeera English, and PressTV from Iran. And earlier in the day there was coverage on those global outlets and several others.
So, the fact that it was a big national story or also talked about on NYC radio is no surprise.
An old definition of news is: Dog bites man, that's NOT news, but man bites dog IS NEWS. This story was, thankfully, unusual.
This was a vengeful former cop turned terrorist, murdering the families of other former cops for revenge, threatening other cops and their families, and with the kind of weapons and police and military training that made the threats credible. And there were some members of the public supporting him as a man cheated by the system. It was a story made for Hollywood. That all made it big news in LA, in the US and around the world.