Police officers have arrested and charged a man with first-degree murder for the shooting death of a 19-year-old Burger King employee, officials said Friday.

The NYPD said the name of the suspect is Winston Glynn, a 30-year-old who previously worked at that Burger King between April and December of 2020. Glynn is also charged with first-degree robbery, criminal use of a firearm and criminal possession of a weapon.

Police officials said that they had no indication that Glynn knew the victim, 19-year-old Kristal Bayron-Nieves.

Police homicide detectives were able to track the alleged assailant seen in security footage from the shooting by examining transit security camera footage, NYPD Chief of Detectives James Essig said at a Friday news conference. Essig said that detectives followed one detail of the alleged assailant's appearance in particular: a thin white cable commonly seen connecting to earbuds hanging out of the person's jacket.

Essig said they tracked the assailant through security footage by looking for a figure with the "same gait, height and earbuds," which led them to Glynn. Glynn was apprehended in Brooklyn Thursday night "without incident," Essig said. 

Mayor Eric Adams said at the press conference that the shooting death of Bayron-Nieves underscored his administration's focus on public safety. 

"When people question my urgency to put in place the right apparatus to give the support to these men and women to do their jobs, they need to go visit Kristal's mother," Adams said. 

Police officials said that Glynn had not made any statements, and had requested an attorney. Glynn has four prior arrests and one open criminal case, a felony charge for menacing with a knife. Police have not recovered the weapon used in the shooting, officials said. 

Essig said it was unclear if Glynn had any struggles with mental illness. 

"Maybe he's a person that had he gotten services earlier on, we could have saved this woman's life," Essig said. 

Bayron-Nieves was working as a cashier inside a Burger King near East 116th Street and Lexington Avenue around 12:50 a.m. Sunday when a man entered the eatery, flashed a gun and demanded cash, police said.

When the gunman tried to remove cash from the register, a manager and a customer intervened, at which point he pistol-whipped both the manager and a customer, the NYPD said, knocking out two of the manager's teeth.

The gunman shot Bayron-Nieves as she struggled to open a second cash register, which she did not have the key for, officials said. The gunman left with approximately $100 and the manager's phone, they said.

Bayron-Nieves, who lived in East Harlem, was taken to NYC Health + Hospitals/Metropolitan, where she was pronounced dead, the NYPD said.