Tanya Ballard Brown

Updated at 6:50 p.m. ET

Florida Gov. Rick Scott has signed legislation tightening gun restrictions in the state. Among other things, the legislation raises the legal age for gun purchases to 21, institutes a waiting period of three days, and allows for the arming of school personnel who are not full-time teachers.

In a statement, Scott's office highlights mental health provisions in the bill:

New York City is one step closer, as part of a larger plan, to shutting the doors on the Rikers Island jail complex. On Wednesday, city officials announced an agreement to start a public review process of proposed sites for smaller jails in Manhattan, Brooklyn, the Bronx and Queens.

"This agreement marks a huge step forward on our path to closing Rikers Island," said Mayor Bill de Blasio. "In partnership with the City Council, we can now move ahead with creating a borough-based jail system that's smaller, safer and fairer."

As the year draws to a close and the news cycle continues to reset every day, let's pause and revisit some of the most important news events from 2017.

The Inauguration

If you've been convicted of marijuana-related crimes in California, you might be able to have your record wiped clean or the charges greatly reduced under a provision in the state's new marijuana law, Prop 64. More than 4,000 people have already petitioned the courts about their records and sentencing.

The police response to the Pulse nightclub massacre in 2016 followed protocol, but more training and better coordination are needed moving forward, according to a new 200-page review from the Justice Department and the Police Foundation.