Colorado Rep. Tom Sullivan, D-Aurora, who lost his son in the 2012 mass shooting at a movie theatre in Aurora, Colo., waits to speak during a hearing before the House Judiciary Committee on a bill to get a "red flag" gun law on the books in Colorado Thursday, Feb. 21, 2019, in Denver. The bill, which is backed by several law enforcement officials, would allow for the seizure of weapons from persons deemed by a court to pose a significant risk to themselves and to others. (AP Photo/David Zalubowski)