New federal charges reveal shooter's girlfriend bought two AR-15-style firearms used in Burnsville attack. Shooter unleashed over 100 rounds during hours-long standoff, killing three first responders and injuring another.
Shannon Gooden used a firearm, acquired through a straw purchase at a local firearms shop and range in January, in a fatal Burnsville standoff earlier this month. The incident highlights concerns over the regulation of firearm sales.
