Who Did It?

The Firearms Unit analyzed two cartridge cases, one bullet (projectile), and one firearm recovered from the crime scene. They also analyzed another firearm recovered from suspect #2. The Firearms Unit compared the bullet and cartridge cases from the crime scene to test fires from the firearm collected at the scene (item marked #6). It was excluded as having fired the bullet/cartridge cases. A serial number restoration was also completed on this firearm.  Running the serial number through NCIC revealed that the weapon was stolen six months earlier. The Firearms Unit compared the bullet and the cartridge cases from the crime scene to test fires from the firearm found on suspect #2. It was determined that the bullet and both cartridge cases were fired from this firearm. The Firearms Unit also identified the shoeprint left at the scene to a shoe found on suspect #2.