A device called an “auto sear” can transform a semi automatic gun into a weapon capable of emptying an entire magazine with a single trigger pull. An investigation by VICE News and The Trace has found these devices have exploded in popularity on the black market. #VWN | VICE News Tonight

Oklahoma has the highest number of executions per capita of any state in the US. It’s executed 116 people over the last 50 years. We talked to an inmate about what it’s like to be sentenced to death, and to his brother about what it’s like to watch a loved one be executed. #VWN | VICE News Tonight

Today's 3D-printed “ghost guns” can look, feel, and shoot like factory-made weapons. To meet the people designing and making these untraceable firearms, and get a sense of what their guns are capable of, we decided to enter the first-ever shooting competition exclusively for homemade and 3D-printed firearms—and build our own ghost gun. #VWN | VICE News Tonight

It looks like the Supreme Court may not kill the Affordable Care Act after all. | VICE News Tonight