After 40 years, police say they have finally caught the Golden State Killer, a man responsible for at least 12 murders, 50 rapes, and 100 break-ins in the 1970’s and ’80s. They found him using a genealogy site -- a relative uploaded DNA and unwittingly provided the missing link. Vox’s Aja Romano narrates the killer’s grisly reign of terror across California, and lawyer Steven Mercer explains why the DNA methods police used set a dangerous precedent for the rest of us. ********************************* New steel tariffs were supposed to go into effect overnight, but the White House extended them by another 30 days. For more on the tariffs and why they won’t make the United States any more popular in Canada, Mexico and Europe, check out our March 6th episode “What’s the Deal with Steel” here: https://art19.com/shows/today-explained/episodes/eb487386-3786-4bb3-ad4c-ee6e5f0acd44 Learn more about your ad choices. Visit podcastchoices.com/adchoices