Prosecutors say surveillance footage shows a deadly attack on Margaret Swan as she sat near a train door.
ATLANTA, Ga. — Federal prosecutors say video from inside a MARTA train captured the moments before John Elijah Matthews fatally stabbed Margaret Swan, a 66-year-old passenger who was sitting near a door and looking at her phone.
The charge filed in federal court centers on an alleged act of violence causing death on a mass transportation system, a count that can carry life imprisonment or the death penalty if the government obtains a conviction. Matthews, 25, of Decatur, also faces a local murder charge in Fulton County. The criminal complaint says Swan was attacked May 30 on a northbound MARTA train traveling from the Lakewood station toward Oakland City Station. Authorities have described the killing as unprovoked and apparently random.
The federal complaint says the train’s surveillance system showed Matthews standing next to Swan shortly before the attack. Swan was sitting near the door, prosecutors said. The video allegedly showed Matthews reaching into his pocket, pulling out a folding knife and stabbing her in the chest and neck area at about 11:25 a.m. Investigators said Swan tried to defend herself. At least one passenger later told authorities there had been no interaction between Swan and Matthews before the attack. Police said the two did not appear to know each other.
Local arrest warrant details added a more precise timeline. Swan was shown boarding the train at 11:21 a.m., according to local reports citing police records. Matthews walked on about three minutes later and moved beside her. Police said less than 15 seconds passed before he began stabbing her. The warrant said she was stabbed 18 to 20 times. FOX 5 Atlanta reported that the warrant described Matthews grabbing Swan by the head, cutting her throat and then stabbing her repeatedly. Authorities said the train was still moving as passengers fled and called for help.
MARTA Police Chief Scott Kreher said the video showed a killing that gave riders little time to understand what was happening. “He walked over, stood next to her, and within 30 seconds he had killed her,” Kreher said. He said Matthews did not speak to Swan before pulling the knife. Other people were in the train car, but police said Matthews did not approach them. After the attack, officials said, he stood near Swan until the train reached Oakland City Station. He then stepped onto the platform and sat down or remained there without trying to hide.
Police arrested Matthews at the station soon after the train stopped. Federal prosecutors said MARTA officers found blood on his clothes and recovered a bloody folding knife that was consistent with the weapon seen on the surveillance video. Local reporting said officers had their weapons drawn when they intercepted him and that Matthews complied with commands. A responding officer then went to the train car after a crowd reported that a man in an orange shirt had stabbed a woman. The officer found Swan motionless and tried to provide aid until emergency medical workers arrived.
Swan died at the scene, officials said. The Fulton County Medical Examiner’s Office identified her as an Atlanta resident. Her family said she was a former Atlanta Public Schools employee and had been leaving one daughter’s home when she boarded the train. Her daughter, Shanae Sams, said Swan was the mother of three children, grandmother of five and great-grandmother of four. “My mom was the rock of the family,” Sams said. Relatives said the video timeline has been especially painful because it shows how quickly a routine trip became deadly.
The legal path began with state charges and expanded when the U.S. Attorney’s Office for the Northern District of Georgia announced the federal complaint on June 2. U.S. Attorney Theodore S. Hertzberg said Atlantans and visitors expected for FIFA World Cup events deserved to travel free from fear of violent attack. FBI Atlanta Special Agent in Charge Marlo Graham said the crime affected everyone who relies on mass transportation. The Justice Department said the attorney general would decide whether to seek the death penalty. Matthews is presumed innocent unless convicted in court.
The attack also forced MARTA to defend its safety operations. The authority said it has a police force of 280 sworn officers, about 12,000 cameras and security coverage across buses, stations and railcars. Local reports said the system also uses 30 field protective specialists, undercover officers and a real-time crime center that is monitored during operating hours. MARTA said it was grieving with Swan’s relatives and remained committed to protecting riders and employees. Kreher said planned security increases tied to World Cup preparations were put in place immediately after the killing.
Swan’s family said those measures did not answer all of their questions. Relatives asked where security personnel were when Swan screamed and why no one inside the train stopped the attack. They also said they want more police on train cars and more control over entry gates. Police have not publicly confirmed where every officer or security worker was positioned when the attack began. Officials also have not released a motive. The lack of a known link between Swan and Matthews has sharpened the family’s anger and the public concern.
The killing briefly disrupted rail service around Oakland City Station. Local reports said MARTA evacuated the station, suspended service until shortly before 3 p.m. and used shuttle buses to move about 80 to 100 stranded passengers. The train car, platform and recovered weapon became part of a case now being investigated by both the FBI and MARTA police. Matthews was permanently banned from MARTA property, according to local reporting. AP reported that he waived a bond hearing set for the Monday after the killing and had not yet entered a plea at that time.
The next public step is expected in court, where prosecutors will have to prove the charges and defense counsel will have the chance to respond. The video may guide the case, but the central facts remain stark: Swan boarded a train, sat alone and died minutes later.
Author note: Last updated July 6, 2026.