Hiram Alejandro Rodriguez Briceño/Wikimedia Commons

Most of us who have boarded a plane in the years since Sept. 11 fret about bringing more than 3.4 ounces of shampoo in their carry-on. So it may come as a surprise that some Americans still try to board flights with loaded weapons.

In the first six months of 2013, the T.S.A. found 894 guns at airports across the country, most of them loaded, USA Today reported Monday. It is a 30% increase over the first six months of last year. The guns are usually surrendered without incident, and while the traveler faces a fine of up to $7,500, criminal charges either aren’t filed or dropped, according to records reviewed by The News & Observer. But what worries Colon Willoughby, the district attorney in Wake County, N.C., is how careless people have gotten with their guns.

“We’ve become such an armed society that people actually aren’t thinking about the fact that they’re carrying weapons with them,” he told USA Today. “That’s a little bit sobering, to think that we are so accustomed to carrying a firearm with us that we often don’t think about it or realize that we have it.”

Here is today’s report.

—Jennifer Mascia

A man and his 1-year-old son were shot to death at a home in East Oakland, Calif., early Wednesday. Several shots rang out at about 2:45 a.m., and 20-year-old Andrew Thomas and 1-year-old Drew Jackson were found shot in the face. Thomas’s aunt believes the killings may be related to the shooting death of his 18-year-old cousin on Saturday. “He was a jolly baby,” she said of Jackson. “He really liked to play outside with animals and play with his sister.”

—KTVU.com

A 9-year-old boy was critically injured in what police say was an accidental shooting in Little Rock, Ark., Wednesday afternoon. Three boys were inside a home when a gun fired, striking the victim at least once. No adults were in the house at the time. The two other boys, ages 13 and 16, have been taken in for questioning.

—ArkansasOnline

At least four people were killed and four others were wounded in two separate but related shootings in Dallas, Tex., and the neighboring town of DeSoto late Wednesday. Police arrived at a home in Dallas at about 10:30 p.m. to find Toya Smith and 17-year-old Mia Allen shot and killed, and a 14-year-old boy shot and wounded. About 15 minutes later, police descended on a second shooting scene in DeSoto and found two people shot dead, and two boys, ages 11 and 13, shot and wounded. The gunman, Erbie Bowser, who was in a relationship with one of the young women killed, was arrested.

—NBC DFW

Bernard Kelly, 18, was shot in the groin in north Toledo, Ohio, late Tuesday. The victim told police he was walking with two friends when someone in the back of a black vehicle fired several shots. Police are soliciting tips.

—Toledo Blade

43-year-old Rhonney Jacobs accidentally shot himself in the groin while waving a gun at residents of a Norfolk, Va., neighborhood Tuesday night. A witness said Jacobs drove by at high speed, and when residents asked him to slow down because kids were playing nearby, he pulled over and took out a gun, which discharged. “I’m just happy none of the kids got hurt,” a witness said.

—WKTR.com

Marvin Daniel Gutierrez, 31, was found shot and killed in Angier, N.C., late Tuesday. No arrests have been made and police are soliciting tips.

—WRAL.com

Mark Partelow, 46, was shot in the head and killed during an argument outside a residence in Butte, Mont., late Monday. Jeffrey Lackman and Juan Jose Romero were arrested. No motive was given.

—Billings Gazette

33-year-old Montrey Kelon White was shot in the head and killed by a longtime friend while they argued in northeast Houston, Tex., Tuesday night. Police are investigating.

—Click2Houston.com

Two men, ages 23 and 29, were shot and wounded in north Philadelphia, Pa., Wednesday evening. A gunman is being sought.

—Philly.com

Timothy Jackson, 23, arrived at a San Bernardino, Calif., hospital with a wound to his left leg early Tuesday. He told deputies he had been shot by someone in the parking lot of the Rio Ranch Market. Deputies are continuing to investigate.

—The Sun

32-year-old Jaime Garcia was killed in a road rage incident near Memorial City Mall in Houston, Tex., Tuesday night. The victim had just left the shopping center when he saw a man driving erratically. Garcia was able to report the car’s license plate number to 911 before the driver shot him in the back of the head. Police have made an arrest.

—KHOU.com

A clerk in a gas station convenience store in South Lake Tahoe, Calif., was found shot and killed Tuesday night. Security cameras showed a masked man enter the store, and after a brief encounter with the victim, the man raised a handgun and shot him before fleeing. He is being sought.

—The Sacramento Bee

Anthony Carter was dropped off at a Wayne County, N.C., hospital with a gunshot wound to the chest Tuesday. John Collins Chase II, who drove the victim there, originally told police that Carter was the victim of a drug deal gone bad, but police later discovered that Chase shot Carter following an argument. The gunman has been charged with assault with a deadly weapon with intent to kill.

—WITN

A man in his 20s was shot in the head and killed, and another man, 28, was shot and wounded in the Englewood neighborhood of Chicago, Ill., early Wednesday. No one is in custody and a motive was not announced.

—CBS Chicago

A 34-year-old man was fatally shot in the Lincoln Park neighborhood of San Diego, Calif., Tuesday evening. The victim was sitting in front of an apartment complex when he was shot, and witnesses reported seeing a man in dark clothing running from the scene.

—ABC10 News

A 26-year-old man was fatally shot after a verbal argument escalated in Milwaukee, Wis., Wednesday afternoon, hours after the mayor and police chief held a press conference addressing a recent rash of shootings. “The largest percentage of our homicides this summer have been arguments that, basically, went from words, to fists, to guns,” said Milwaukee Police Chief Ed Flynn. “There are people out here that are heavily armed, that engage in the confrontations with each other, that are willing to use firearms.”

—Fox6Now.com

A man was shot in the leg during a dispute with a neighbor in Buffalo, N.Y., Wednesday night. Officers found the gun around the corner. No arrests have been announced.

—WIBV4.com

One man was killed and another was wounded after a shooting at a home in Carlsbad, Calif., Wednesday night. Police have not named any suspects.

—CBS8.com

A man was shot in the leg and wounded in an armed robbery in Opa-locka, Fla., Wednesday morning, and a local elementary school was placed on lockdown amid fears that the gunman had entered the campus. The shooter is still at large.

—Miami Herald

A man was shot in the leg and wounded at a deli in Trenton, N.J., Wednesday afternoon. Nearby residents said they heard nine or ten shots, possibly from two gunmen. Anyone with information is asked to contact police.

—NJ.com

According to Slate’s gun-death tracker, an estimated 6,956 people have died as a result of gun violence in America since the Newtown massacre on December 14, 2012.