A shooting in a Minneapolis high-rise building resulted in three fatalities, including the gunman, and multiple injuries Wednesday. Three police officers were among those injured, with one requiring surgery. Authorities discovered the shooter deceased at the scene following the incident. The circumstances leading up to the shooting remain under investigation, and further details are emerging as the situation unfolds. The incident has prompted a significant police response and raised concerns about gun violence in the city. NBC News correspondent Steve Patterson is reporting on the developing story.