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Much attention has been paid, and rightly so, to the stalking and killing of 16-year-old Trayvon Martin, who was unarmed, in a residential neighborhood in Sanford, Fla., last year, as well as the disproportionate rate at which people (and children) of color are losing their lives to gun violence. And though the George Zimmerman trial has concluded, another is about to begin.

John Henry Spooner, 76, who is white, is charged with shooting and killing his next-door neighbor, Darius Simmons, 13, who is black, last year because he suspected Simmons had broken into his Milwaukee, Wis., home and stolen – of all things – guns. When Simmons denied stealing anything, Spooner apparently shot him in the chest in front of his mother, and then fired a second shot as the boy tried to run away.

Like Zimmerman, this appears to be another case of a person with a gun acting as judge, jury and executioner. The Centers for Disease Control reported last week that four times as many young murder victims in the United States were killed by firearms than by other method, and that blacks are most often the victims. The New York Daily News, on its provocative front page yesterday, traces the path from Emmet Till to Yusuf Hawkins to James Byrd Jr. to Trayvon Martin.

And now, Darius Simmons. Here is today’s report.

—Jennifer Mascia

A 2-year-old boy and two men were killed in a shooting at a Flint, Mich., apartment complex Monday morning. The two adult victims were found dead just before 8 a.m. at Park West apartments near Atherton. The toddler died on the way to the hospital. There are no suspects and no arrests had been made.

—CBS Detroit

A 10-year-old and 24-year-old were shot when someone opened fire on the front porch of a house on the east side of Detroit, Mich., Monday afternoon. The 10-year-old was shot in the arm and the adult was shot in the back. The shooter is in custody.

—WXYZ.com

A 3-year-old boy was shot in the stomach in a housing area at Fort Huachuca in Sierra Vista, Ariz., Saturday night. Details aren’t being released and the child’s name hasn’t been disclosed. Police and military investigators will be working the case.

—CBS5AZ.com

A 5-year-old boy is in the hospital after he was shot in the back in Muskogee, Okla., Saturday night. The child was in a car with his mother at the Whispering Pines Apartments at about 11:30 p.m. when someone unloaded a handgun into the car. The woman took her son to a hospital. “A few inches in either direction [and] we may have had a dead child on our hands,” a police spokesman said, adding that an argument precipitated the shooting.

—News9.com

A 16-year-old boy was killed after being shot on the far east side of Columbus, Ohio, Monday evening. A large fight in front of a home escalated and weapons were drawn, and Isaiah A. Giles was hit at least once. He died at the hospital. Officers continue to search for suspects.

—NBC4i.com

A 16-year-old boy was accidentally shot with a shotgun and critically injured at a Kodiak, Alaska, home Sunday night, and a 15-year-old boy has been taken into custody. Police are investigating.

—KMXT

A 17-year-old boy died after a shooting Monday morning in Bessemer, Ala. The victim was driven from the scene and found a few blocks away in a truck. He died at the hospital. Police are questioning witnesses and suspects.

—AL.com

An off-duty fire department inspector was shot and killed during a domestic incident in north Houston, Tex., Monday morning. David Stoneham, 55, pulled up to his house at around 10 a.m. with his 17-year-old daughter in the car when the girl’s stepfather shot her father at point-blank range. The victim began his career with the Houston Fire Department and was promoted to inspector in 1999. Alain M. Bell was charged with murder.

—KHOU.com

Five people were injured when someone opened fire at a pool party in Kentwood, Mich., early Monday. A group was in the backyard of the home when ten people showed up who were uninvited. According to detectives, there was a scuffle and someone began shooting into the larger group. Police are looking for the suspects.

—WZZM13

Andrew Austin Bohannon, 24, and Matthew Ryan Bohannon, 19, who were brothers, were shot and killed outside a Golden Corral in Jacksonville, Fla., Sunday night. Detectives do not think the shooting was random, and the victims may have had an altercation with their attackers.

—Jacksonville.com

Terrell West, 23, was fatally shot outside Audubon Village Apartments in the eastern end of Henrico County, Va., Sunday afternoon. Police are soliciting tips.

—TimesDispatch.com

Sean Pitts, 21, was killed and a 29-year-old man and a 16-year-old boy were wounded during a drive-by shooting in Miami-Dade County, Fla., early Monday. Witnesses said a white truck fled the scene at the Lincoln Field Apartments; it turned out to be stolen. The motive is unclear.

—Miami Herald

A man fatally shot himself showing off a neighbor’s handgun while drunk in the Boyle Heights section of Los Angeles, Calif., early Monday. The gun owner reportedly grew nervous as he watched the weapon get passed from one drunk person to another and tried to wrestle it away from the victim. Neighbors told detectives the victim was having an affair with the gun owner’s wife. Detectives are investigating possible homicide.

—Los Angeles Times

53-year-old Randy E. Dickenson was shot and critically injured following a dispute with a relative in Enterprise, Ore., Sunday night. 47-year-old Daniel Kent Courtney, a former deputy sheriff in Eastern Oregon, was jailed on an assault charge.

—KOIN.com

One person is dead and two others were wounded in a shooting in an Atlanta, Ga., apartment complex early Monday. Detectives have learned very little about what led to the attack.

—11Alive

Sherry Matthews, 44, was shot in the neck and killed and another person was wounded at an apartment building in the Lilly Grove area of Princeton, W. Va., early Monday. After being struck in the chin, Edward Lee Thomas, 41, flagged down deputies. Steven McDonald, 32, and Latasha Marie Kanode, 23, were charged with first-degree murder, first-degree robbery, burglary, conspiracy and attempted murder.

—Bluefield Daily Telegraph

A 19-year-old man is in critical condition after a shooting Sunday night in Donaldsonville, La. When deputies were called to D’ville Village Apartments for a large fight they found the victim with a gunshot wound to the head. No arrests have been made.

—9WFB

A 20-year-old man was shot and wounded during an argument in eastern Birmingham, Ala., Monday afternoon. Neighbors said they heard arguing followed by several gunshots. Police took a suspect into custody.

—AL.com

According to Slate’s gun-death tracker, an estimated 6,217 people have died as a result of gun violence in America since the Newtown massacre on December 14, 2012.