Sullivan lost his son, Alex, in the Aurora theater shooting in 2012. This November, Sullivan was elected to the state House.
Sullivan's election to the state House was part of a blue wave in Colorado. Now he's leading a renewed effort for "gun restraining order" legislation.
Both Republican George Brauchler and Democrat Phil Weiser said they wouldn’t do anything to thwart recreational marijuana legalization.
March’s sales jump was led by rifles, which tend to be implicated in most gun control talk.
The suit was filed two days after city councilors passed the ban on the sale and possession of assault weapons.
The ban was proposed in response to the high school shooting in Parkland, Florida.
Democrat state Rep. Alec Garnett proposed the bipartisan 'gun restraining order' bill, which empower judges to temporarily remove firearms from potentially dangerous people.
After weeks of debate, the city council will again take up a proposal to bar assault-style weapons, high-capacity magazines and bump stocks.
There were many parallels drawn between the 1999 Colorado shooting and the February shooting in Parkland, Florida.
Why do high schools allow the NRA to sponsor groups? Why can't gun violence research get more funding?