Police say Robert Crimo III disguised himself in women’s clothing and was equipped with a legally purchased firearm.
The rampage in Highland Park,Chicago,came on July 4,the day Americans are meant to take to the streets to celebrate the good things about their country.
Six people were killed and at least two dozen injured when a man with a high-powered rifle opened fire from a rooftop at a Fourth of July parade.
Mohamed Noor was freed 18 days shy of the fifth anniversary of the fatal shooting of Damond,a dual US-Australian citizen.
In the House,14 Republicans joined Democrats,following similar numbers in the Senate,to approve the bill. Voters have been repulsed over last month’s mass shootings.
Both parties emerged with a compromise to curb bloodshed that has come to regularly shock — yet no longer surprise — the nation.
The Supreme Court said Americans have a right to carry firearms in public for self-defence,a ruling likely to lead to more people legally armed in cities and beyond.
A Texas official told a hearing that “terrible decisions” were made by the onsite commander and officers who did not have enough training.
Payton Gendron,the gunman at the centre of the Buffalo massacre in May,has been charged with 26 hate crimes that make him eligible for the death penalty.
The new law “is giving schools an option,based on their particular circumstances,to make the best decision they can make with the best information they have,” Ohio governor Mike DeWine said.
An estimated half a million American guns are trafficked into Mexico each year,causing untold violence and death.