WASHINGTON (DC News Now) -- The Metropolitan Police Department (MPD) said officers arrested a teen for having an illegal semi-automatic gun on Monday evening. Credit: MPD Police said officers arrested the 14-year-old boy for possessing an illegal 9mm semi-automatic handgun. Locals excited for face-off between Washington Commanders and Baltimore Ravens MPD currently offers up to $2,500 for anonymous information that leads to the recovery of illegal firearms.