School Shooter Bought AR-15 Legally

What kind of country are we living in that allows this to happen again and again and again?

A law enforcement official is telling The Associated Press that a former student who killed 17 people at a Florida school legally purchased his AR-15 rifle about a year ago.

The official is familiar with the investigation into the school shooting but not authorized to discuss it publicly and spoke on condition of anonymity.

Federal law allows people 18 and over to legally purchase long guns. At 21, people can legally buy handguns from a licensed dealer.