Some tense moments in a Pahrump neighborhood Thursday evening, as Nye County deputies responded to a report of an active shooter. Today, the suspect -- 62-year-old Steven Burson -- is under arrest and facing a number of charges. The sheriff's office says it appears that in 2001, Burson was involved in a similar situation with officers in Las Vegas. While the exact number is unknown, investigators estimate Burson fired hundreds of rounds during the standoff.