The alleged shooter was arrested on the same day by the police, their investigation remains ongoing.
"We have the first person in this one and we will continue to go after others that we believe were involved in this incident," the Atlanta police chief said.
The 17-year-old suspect in the fatal shooting is facing capital murder charges, according to court documents.
The suspect faces multiple felony charges and was denied bond by a local judge.
The infant's mother found herself between a gunfight involving people in two vehicles, and the bullet traveled into the back of her car and killed the child.
Maldonado was shot and killed inside her car in the Santa Fe area of Tijuana on Sunday.
"The lack of appreciation for the sanctity of life leaves many of us aching for understanding," said a police chief after the attack.
"These are sociopathic killers that have to be sequestered from society," said one official after the attack.
The shooter exited a vehicle and opened fire near the woman and child, who were not the intended targets, police said.
A manhunt is underway, with police chief Troy Finner urging the shooter to hand themselves in: "Turn yourself in peacefully."
The woman allegedly hit the employee on the head with a gun before shooting, following a dispute over a discount.
Two men died in the poolside incident at an upmarket resort between Playa del Carmen and Tulum.
Police said Lashawn McNeil shot Jason Rivera while the officer was responding to a domestic disturbance in New York City's Harlem.
Biden's first year as president saw a 12 percent increase in gun deaths when compared to Trump's first year in office.
The borough council in Philadelphia suburb of Sharon Hill voted 6-1 on Thursday night to relieve the officers of their positions.
NYPD has told Newsweek the girl is in "critical but stable condition." New York City Mayor Eric Adams said of the shooting: "If that's not a wake-up call, I don't know what is."
The father remains in police custody amid an investigation into whether he acted in self-defence.
Frank Deleon Jr.,17, has been arrested and charged in connection to the shooting death of his ex-girlfriend Diamond Alvarez, who was shot while walking her dog.
When the man returned to the bar, he allegedly began shooting at a security officer who had reportedly kicked him out of the bar earlier in the night.
The suspect fled on foot after the shooting and is still at large, according to the Long Beach Police Department.
The 3-year-old boy found the gun after the visitor put down her coat, which had a gun in one of its pockets, in the living room, officials said.
She had worked at the restaurant for 34 years and leaves behind three grandchildren and three children of her own.
"We know we have witnesses...We just need people to feel comfortable to bring it forward," said a police chief.
The district attorney's office is "sort of making a message here" to parents with guns in the house, said a criminal lawyer following the charge.
The 16-year-old employee was a bystander during an argument between another worker and the irate customer.
According to a criminal complaint, the suspect's 16-year-old daughter said she was best friends with the victim and claimed they staged the robbery together.
Jason Walker was shot and killed on Saturday by an off-duty police officer. The police chief said she was uncertain where or how many times he had been shot.
Police investigating the shooting death of Halyna Hutchins on the set of Alec Baldwin's movie "Rust" had issued a search warrant for the phone on December 16, 2021.