For the first time, researchers at UCLA have shown a causal link between print media coverage of U.S. gun control policy in the wake of mass shooting events and increases in firearm acquisition, particularly in states with the least restrictive gun laws

See the source article by following the link below:
For the first time, researchers at UCLA have shown a causal link between print media coverage of U.S. gun control policy in the wake of mass shooting events and increases in firearm acquisition, particularly in states with the least restrictive gun laws