C. J. Chivers/The New York Times

The shooting of Trayvon Martin in a gated community in Sanford, Fla., drew public attention to the state’s self-defense statutes, and lawmakers there seem to be reacting: Florida’s House of Representatives will hold hearings this fall on its “Stand Your Ground” self-defense law, which was the first of its kind in the country when it was adopted in 2005.

It is a rare concession to protesters, who recently staged a sit-in outside Gov. Rick Scott’s office to demand changes to self-defense laws and initiatives to stop racial profiling. And even though the chairman of the criminal justice subcommittee said he doesn’t “intend to move one damn comma” in the law, perhaps this marks a step toward sanity: 20-plus states have their own version of the law, which is linked to an increase in homicides.

Here is today’s report.

—Jennifer Mascia

Friday:

A 9-year-old boy was killed when his 13-year-old stepbrother accidentally shot him with a 12-gauge shotgun in Clay County, Tex., Friday evening, and the children’s grandfather was charged with endangering a child. Four people were shot dead in Letcher County, Ky., early Friday, including 31-year-old Amy Ratliff, a mother of two who battled multiple sclerosis; her 25-year-old boyfriend, Josh Wyatt; 35-year-old Jennifer Walters; and Walters’s boyfriend, 58-year-old Tim Shelby, who shot the three victims before killing himself.

36-year old Clifton Purkett and 37-year old Rashid Pryor were killed and three others were wounded when two masked men pulled up in a dark sedan and opened fire in Newark, N.J., Friday night. Jaquan Marquise Brown, 21, and Roderick Deon Rush, 37, were shot and killed and three others were injured in two separate shootings in Hampton, Va., early Friday. James Foster, 19, was shot in the arm and leg in retaliation for a prior shooting in downtown Charleston, W. Va., early Friday.

Two men were shot and killed during an argument outside an Office Max in Porterville, Calif., Friday morning. Four people were injured in a shooting outside a nightclub in Broad Ripple, Ind., early Friday, after a fight broke out over a girl. Peter Byrne, 41, was shot in the hip and wounded after an argument in the driveway of a home in Encinitas, Calif., early Friday. Two bank robbers were shot by a man they tried to abduct north of Columbus, Tex., Thursday afternoon.

A man was fatally shot in West Oakland, Calif., Friday evening. One person was injured in a shooting in East Oakland, Calif., Thursday evening. 49-year-old Sacore Raley Gray was shot and killed in her west Charlotte, N.C., home Friday morning. Leon Day and Daizhon Robinson, both 27, were shot and wounded in the upstairs bedroom of a house on the South Side of Columbus, Ohio, Thursday afternoon. A man was seriously injured in a shooting at an apartment complex in Fort Wayne, Ind., Friday afternoon.

Jimmy Johnson, 34, was found shot and killed in a car in Winnsboro, La., late Wednesday. A man is recovering after being shot in south Memphis, Tenn., early Friday. A man was found shot and wounded in a motel parking lot following a robbery in south Houston, Tex., early Friday. Marchell Baker, 26, was gunned down in the driveway of a home in Melbourne, Fla., Thursday night. Delano K. Blair, 30, was found shot multiple times and killed in the front yard of a home in northeast Nashville, Tenn., Friday morning.

A 20-year-old pregnant woman was shot twice in the head and wounded after arguing with her boyfriend at her Baton Rouge, La., apartment early Friday. A man was shot and wounded by his girlfriend’s ex-boyfriend in Baton Rouge Friday afternoon. Donald Ray Walls, 26, was shot multiple times and killed and another man was wounded during a drug deal gone bad in east Baton Rouge Friday night. A 22-year-old man is dead after a shooting at a Novi, Mich., apartment complex late Thursday.

A road rage incident left Oscar Rios, 19, shot and wounded on Highway 99 in Delano, Calif., Friday afternoon. A man was shot in the chest with a shotgun after an altercation on a Reno, Nev., street Friday afternoon. A 24-year-old man was shot to death in north Berkeley, Calif., Thursday night. Robert Jacobsen, 85, fatally shot his wife and himself at their Sun City, S.C., home Friday afternoon. A man was found lying dead in the street near a park in west Louisville, Ky., Friday night.

DeAndre Peterson, 24, showed up at a Daytona, Fla., hospital with two gunshot wounds Thursday evening and told police he was “caught in the crossfire.” A 55-year-old woman was shot in the buttocks and a 15-year-old boy was grazed in the hip after shots rang out in Jersey City, N.J., Thursday night. Joseph A. Hewitt accidentally shot himself in the groin with a gun he kept in his waistband at a motel in Schenectady, N.Y., Friday night.

McKayla Hopkins, 18, was shot and killed while attending a party where teens were showing off a gun in Warren, Ohio, Friday night. 36-year-old Craig Glen was found shot and killed in a home in Heyburn, Idaho, Friday afternoon. Matthew Andujar, 22, was shot and killed at an Orlando, Fla., apartment complex Friday afternoon. A young man was shot in the leg while walking in Norristown, Pa., Thursday night.

Six people were shot in four separate shootings in New York City Friday night, including 10-year-old Briana Palmer, who was caught in a hail of bullets while walking her dog in the Far Rockaway section of Queens; a 32-year-old man shot and killed after a fistfight escalated to gunfire in the Bed-Stuy section of Brooklyn; 19-year-old Kahleed Adams, who was approached by a group of men in the Bronx and shot in the head; and three people hospitalized with bullet wounds after someone opened fire in the Canarsie section of Brooklyn.

Six people were wounded in shootings in Chicago, Ill., overnight, including a 27-year-old man shot in the shoulder while walking to his car; a 40-year-old man and 19-year-old man wounded when someone fired toward them at least seven times; a 36-year-old man shot in the East Garfield Park neighborhood; a 20-year-old man shot in the Lawndale neighborhood; and a 54-year-old man shot in the Woodlawn neighborhood on the South Side.

Saturday:

One person died and nine people were injured in six separate shootings in Milwaukee, Wis., overnight, including a 41-year-old man caught in the crossfire while working on a car and a 27-year-old man fatally shot after a fight. Six people were shot in five separate shootings within an eight-hour period in Cleveland, Ohio, early Sunday. Five people were shot outside a home on the west side of Detroit, Mich., Saturday, including an 8-year-old boy, a 16-year-old girl and three adults.

A man was shot and wounded in a parking lot in an apartment complex in Lancaster, S.C., Saturday night. One person was shot in the stomach and wounded in a car in Hartford, Conn., early Saturday. A boy was wounded in a shooting on the south side of Bethlehem, Pa., Saturday afternoon. 23-year-old Deandre Lewis was found shot in the head and killed inside an SUV in a parking lot in downtown Cincinnati, Ohio, Saturday morning.

Jimmy Bernard Tinsley, 36, was killed and Brandon Denzel Eggleston, 21, was injured in a shooting in a parking lot at an Econo Lodge in Martinsville, Va., early Saturday. Daniell Simmons, 26, was shot in the stomach and Kevin Hanna, 22, was shot in the head at an apartment complex in Augusta, Ga., Saturday afternoon. Carl Jackson, 31, sustained a gunshot wound to his chest and Lena Williams, 32, was shot in both legs by someone wielding an assault rifle at a house party in Columbus, Ga., early Saturday.

Malcolm Graham, 41, was fatally shot outside a lounge on the east side of Indianapolis, Ind., early Saturday. Bryant Ballard, 46, was found lying outside a home suffering from fatal gunshot wounds to his head and back in St. Louis, Mo., Saturday morning. A woman was shot in the thigh after a dispute with a man in southeast Houston, Tex., Saturday. 33-year-old Shaun Hibbard was found fatally shot in the front yard of a Fitchburg, Mass., home following an argument early Saturday.

A 33-year-old man died of a gunshot wound to the chest and a 32-year-old man was shot in the ankle in Queens, N.Y., Saturday morning. A 27-year-old security guard was shot in the leg while working the door at a nightclub in the Tenderloin district of San Francisco, Calif., early Saturday. A shooting injured three people in San Francisco’s Bayview District Saturday afternoon. Later that night in the same area, a man in his 20s was shot in the torso.

19-year-old Dantrell Clark was shot and wounded following an argument in a hotel parking lot in Greensboro, N.C., early Saturday. A man was fatally shot in Anaheim, Calif., in what police said was a gang-related shooting early Saturday. A 19-year-old woman was shot and killed in downtown San Jose Calif., by a bullet fired at someone else early Saturday. A man was killed after another man opened fire in a packed Joliet, Ill., restaurant as he sat with his wife and two young daughters Saturday morning.

Broadus White Jr., 38, died from a gunshot wound to the chest at Time Out Bar and Lounge in Honea Path, S.C., early Saturday. Zach Sheridan, 24, a former college football standout, was shot and killed near a Dunkin’ Donuts in the Oakland section of Pittsburgh, Pa., early Saturday. Alex Bridge, 22, was shot and killed at an apartment complex in New Milford, N.J., early Saturday. 20-year-old Laron Daquan Davis was killed and another man was injured in a shooting in Norfolk, Va., early Saturday.

Malcolm Graham, 41, was shot and killed outside a bar on the north side of Indianapolis, Ind., early Saturday. Christian and Joseph Hernandez, two 19-year-old brothers, were injured in a drive-by shooting on the east side of Lodi, Calif., late Saturday. Floyd Devin Clegg, 23, and Qualin Hayden, 19, were shot and killed in an apartment in Hugo, Okla., Saturday night. A man was shot and killed in northwest Oklahoma City early Sunday.

A 34-year-old man and a 46-year-old woman were shot at an apartment complex in New Rochelle, N.Y., Saturday night. One person died after a shooting in north St. Louis, Mo., Saturday afternoon. In two separate shootings in St. Louis that night, two people were shot in the leg. Juan Rodriguez-Torres, 33, was shot and killed in Lebanon, Pa., late Saturday. 52-year-old Barry Church was shot in the underarm and killed and a 19-year-old man was shot in the leg and wounded in Trenton, N.J., late Saturday.

Richard Russell was shot and killed by two masked suspects in a possibly drug-related homicide in Tampa, Fla., late Saturday. Scott Thompson, 47, was shot several times and killed in west Baltimore, Md., Saturday afternoon. In two separate shootings in Baltimore the same day, a 31-year-old man was shot in the back and another man was shot in the face during a robbery attempt.

24-year-old Zachary Sheridan was shot in the throat and killed after an argument at a popular hot dog shop in Pittsburgh, Pa., early Saturday. A man was shot in the head and critically wounded in the Central City neighborhood of New Orleans, La., Saturday morning. A 31-year-old man was shot during a dispute over a pack of cigarettes in Lancaster, S.C., Saturday evening. Jesus Davila, a Pima County, Ariz., sheriff’s deputy, was shot in the leg at a Circle K in Tucson Saturday night.

Sunday:

A 2-year-old girl was shot in the back and seriously injured at a home in Danville, Va., Sunday afternoon. A 6-year-old boy riding in a car with his mother was among 21 people shot, two fatally, since Friday afternoon in Chicago, Ill. A man was shot and wounded near a crowded park in Lexington, Ky., Sunday night. 29-year-old Kim Moore was shot and killed by her boyfriend, 33-year-old Reginald Greenwich, in an Orlando, Fla., apartment early Sunday.

A 35-year-old man was shot multiple times and killed while paying his respects after a death in his family in the Village Green neighborhood of south Macon, Ga., early Sunday. A shooting at a New Orleans, La., intersection left a 28-year-old man dead early Sunday. One person was shot after a drug deal became a robbery in Sandy, Utah, early Sunday. A 29-year-old man died after being shot in the stomach in Yakima, Wash., Sunday morning.

A 19-year-old man was found shot and killed in the parking lot of a Wilmington, Del., community center Sunday evening. Two people were injured in separate shootings in Saginaw, Mich., early Sunday. Michael Marshall, 27, was wounded in a drive-by shooting while riding his bike in Grand Rapids, Mich., Sunday afternoon. One person was shot in the wrist during a random shooting at Club Platinum in Richmond County, Ga., early Sunday.

Two people were wounded in a shooting in Shreveport, La., Sunday night. 32-year-old Tommy Butler Jr. was found shot and killed in the parking lot of an after-hours nightclub in Columbus, Ohio, early Sunday. Jone Vang, 21, believed to be a member of a street gang, was found shot dead outside Shotgun’s Saloon in Tulsa, Okla., early Sunday. Derrick Jackson, 22, was shot in the foot during an argument with a co-worker at a local barber shop in Augusta, Ga., Sunday afternoon.

A man was found in the parking lot of an apartment complex with a fatal gunshot wound to the neck in Warr Acres, Okla., early Sunday. One person was shot and critically injured inside a home in St. Louis, Mo., early Sunday. A man was shot and wounded in an alley after an altercation that began in a convenience store in Bristol, Conn., Sunday night. One man was shot dead and another was wounded in the unincorporated area of Westmont, Calif., early Sunday, four days after a fatal shooting in the same area.

A 38-year-old man was shot in the head and wounded at the Hog Pin bar in the community of McNair in east Harris County, Tex., early Sunday. James Robinson, 27, arrived at a Des Moines, Iowa, emergency room with a gunshot wound to the leg early Sunday. A shoot-out at a block party in Kansas City, Mo., left three people injured and a 19-year-old dead early Sunday. A car-to-car shooting in the Oak Park section of San Diego, Calif., left a man injured Sunday afternoon.

A man was shot in the leg after a drive-by shooting in south Tucson, Ariz., Sunday afternoon. Two men were wounded, one critically, in a shooting in Fort Wayne, Ind., early Sunday. Police say a woman shot her son and daughter in a home in Gaston, N.C., Sunday afternoon. A man was shot and killed on the front lawn of his Visalia, Calif., home Sunday afternoon.

According to Slate’s gun-death tracker, an estimated 6,837 people have died as a result of gun violence in America since the Newtown massacre on December 14, 2012.