I live around the corner from that tower. Word is (unverified.. This was word of mouth so take it with a grain of salt) welders were installing some sort of steps or ladder, insulation caught fire and they couldn't contain the blaze so they allowed it to burn out on its own. They are taking it down now and replacing it. The news in the area said it was an AT&T tower. But it looks like sprint NV on there to me, and my cell service has been out since the fire. So I'm assuming the news got it wrong, or it may be a shared tower with AT&T.