Saw that Man runs car into electric substation (AP) and wildfires ksn.com news happened the 19th. I haven’t yet found any news linking either of these to the shutdown.
Las Vegas police investigate car ramming into power substation

Las Vegas police say they’re investigating a car that rammed into a power substation as a “terrorism-related event.” Authorities say there’s no ongoing threat to the public. Police identified the driver of the vehicle as a 23-year-old man from Albany, New York, who was reported missing and is now dead. Police say Dawson Maloney had communicated with family before the crash, referencing self-harm, and said he was going to commit an act that would place him on the news. Authorities say he referred to himself as a terrorist in a message sent to his mother.

AP News