The homeless man accused of brutally murdering a 66-year-old great-grandmother during a seemingly random attack aboard an Atlanta train is now facing a federal charge that could carry the death penalty.
Federal prosecutors announced Tuesday that John Elijah Matthews, 25, has been charged with committing an act of violence causing death on a mass transportation system following the fatal stabbing of Margaret Swan on a Metropolitan Atlanta Rapid Transit Authority (MARTA) train last weekend.
If convicted, Matthews could face life imprisonment or the death penalty under federal law.
The new charge comes in addition to a felony murder case already pending against Matthews in Fulton County.
“Margaret Swan was a beloved great-grandmother who was brutally killed in an unprovoked act of senseless violence,” U.S. Attorney Theodore S. Hertzberg said in a statement announcing the federal prosecution.
“We will not tolerate murder and mayhem on MARTA, and anyone who uses a dangerous weapon to seriously injure or kill on public transportation may face swift and unrelenting federal prosecution.”
According to investigators, Swan was riding an Oakland City Station-bound train shortly before 11:30 a.m. Saturday when Matthews allegedly approached her without warning and launched a vicious knife attack.
Surveillance footage reviewed by authorities reportedly shows Swan sitting alone and looking at her phone moments before Matthews suddenly appeared beside her and began stabbing her.
Federal officials allege Matthews used a folding knife to stab Swan approximately 20 times in the chest and neck.
Witnesses told investigators there appeared to be no prior interaction between the two individuals before the attack.
Authorities say Swan desperately attempted to defend herself while horrified passengers fled the train and called for help.
The attack left Swan dead at the scene.
The victim was a mother of three, grandmother of five, and great-grandmother of four.
Her daughter, Shanae Sams, has publicly expressed frustration over broader public safety failures that may have contributed to the circumstances surrounding the tragedy.
“She was screaming for help, and nobody was helping her,” Sams said following the attack.
Sams also criticized recent decisions related to MARTA operations during preparations for upcoming World Cup events, arguing that public officials should place a greater emphasis on safety and security.
“This whole situation is a situation that could have been prevented,” she said.
Police say Matthews fled only a short distance after the stabbing.
MARTA officers quickly located and arrested him at Oakland City Station, where authorities allege he was still holding the blood-covered knife used in the attack.
The case has renewed concerns about crime, homelessness, and public safety on transit systems in major American cities.
High-profile attacks often generate significant public concern because of their randomness and the inability of victims to easily escape confined environments such as buses and trains.
Federal authorities emphasized that crimes committed aboard public transportation systems can trigger enhanced federal jurisdiction because of the broader impact such incidents have on public confidence and interstate transit networks.
“Margaret Swan was an innocent woman simply trying to get to her destination,” said FBI Atlanta Special Agent in Charge Marlo Graham.
“My hope is these charges will bring justice for her and her family. This crime also impacts everyone who relies on mass transportation to move about their daily lives. Using Atlanta’s train system should be safe and free of violence.”
Matthews remains incarcerated at the Fulton County Jail as both the state and federal cases move forward.
READ NEXT: AOC Blames Charlotte Train Stabbing On ‘Housing Crisis’
