The Trace partnered with more than a dozen NBC TV stations as part of our yearlong investigation into the link between stolen guns and violent crime. With California partners NBC Bay Area in San Jose, NBC7 in San Diego, and NBC4 in Los Angeles, we identified nearly 5,000 stolen weapons that were later recovered by police in the Golden State. The vast majority of the weapons were used in crimes — including assaults, robberies, and murders.

Watch the segments below:

NBC Bay Area