On July 4, the city experienced 12 shooting incidents that involved 13 victims, an increase from last year when there were eight shootings and eight victims, according to the NYPD.

So far this year, gun violence incidents in New York have spiked almost 40% over the same period in 2020, with 767 shootings and 885 victims. CNN has requested data on how many of the shootings over the weekend resulted in homicides.

There were the same amount of murders last year, but the number of shooting incidents and victims increased, according to data from Kellie Bartoli with the Chicago Police Department. There were 83 shooting victims and 18 murders in 47 shooting incidents from July 2-5, 2020, she told CNN in an email.

Lt. Col. Brad Leighton confirmed to CNN that Carvajal was assigned to the Company L, Recruitment Sustainment Program, Recruiting and Retention Battalion, of the Illinois Army National Guard.

"(Carvajal) was new to the Illinois National Guard and was to be assigned to a transportation unit. He had recently completed Army basic training," Leighton said. "Our hearts go out Pvt. 1st Class Carvajal's family and friends.

Unlike other cities experiencing a spike in violent crime, the homicide rate in Chicago through June is 2% lower than the same period in 2020. The number of victims is still 14% higher.

A reason for the drop was a less violent June where Chicago saw a 20% drop in homicides compared to last year (98 instead of 78), a 13% drop in shootings (416 compared to 363) and an 8% decrease in shooting victims (540 compared to 499).

Violence across America

Police are still searching for the suspect, who has not been identified.

There were several mass shootings over the holiday weekend. CNN defines a mass shooting as an incident with four or more people killed or wounded by gunfire, excluding the shooter.

One of the men left during the argument, returned with a gun and began firing "toward groups of people," and multiple people returned gunfire, the release said. Most of the victims, who are in stable condition, are believed to be innocent bystanders, police said.

In Norfolk, Virginia, four children were shot on Friday afternoon, including a 6-year-old girl who was initially reported to be suffering life-threatening injuries but is now in stable condition, according to Norfolk police. The victims also included a 14-year-old boy, a 16-year-old girl, and a 16-year-old boy, all of whom are expected to fully recover.

One person and eleven others were injured in a shooting at a block party attended by several hundred people in Toledo, Ohio on Sunday night, according to Toledo police. A 17-year-old is dead after he was flown by helicopter to the University of Michigan Hospital for treatment, according to Toledo Police Chief George Kral.

Two victims, a 51-year-old and a 19-year-old, are in critical condition, Kral said, and the other nine people wounded are in stable condition, their ages ranging from an 11-year-old to three 19-year-olds.

Two girls, ages 16 and 17, and a 15-year-old boy were wounded in the shooting, Isaac said. The 17-year-old girl is in critical condition with a gunshot wound to her back while the other two victims suffered gunshot wounds that were not life-threatening, Isaac said.

In Toledo, Ohio, one person died and 11 others were injured in a block party shooting on Sunday night attended by several hundred people, Toledo police said. The victims range in age from 11 to 19, and nine of them remain in stable condition, police said.

In Las Vegas, two men are dead and at least seven others were injured following a shooting on Sunday night, according to a news release from the North Las Vegas Police Department.

"Both of the deceased victims are males and believed to be in their early 20's. Officers are aware of seven other people who had been injured," NLVPD spokesperson Officer Alexander Cuevas told CNN in an email Monday. "Detectives and CSI were called to the scene and are pursuing all leads in the investigation."