An 18-year-old from Texas who was wanted on a murder charge

A 17-year-old from Texas is wanted on a murder charge in the fatal stabbing of a man in a fight that began on an escalator at Boston's South Station last week, police said Tuesday.

They are searching for Aubrey, Texas, resident Marico Levy. He's described as 5-foot-7, 140 lbs., with black hair and brown eyes, and anyone who knows where he is was urged to call Boston police at 617-343-4470 or anonymously through their CrimeStoppers Tip Line (1-800-494-TIPS or by messaging "TIP" to 27463).

Police didn't share where they think Levy might be or how he was identified as a suspect in the deadly fight on Wednesday that left Latavius Owens, a 29-year-old from Memphis, Tennessee, dead.

MBTA Transit Police shared surveillance images of Levy on Tuesday:

A man has died after being stabbed on an escalator at the busy Boston train station.

MBTA Transit Police initially responded to the report of a stabbing around 5:30 p.m., Boston police have said. A man was found suffering from a stab wound inside the station, rushed to a local hospital and pronounced dead.

Investigators have said they believe the the fight started on a South Station escalator that leads to an exit,

On Wednesday evening, an entrance to the busy transit hub was taped off, and blood could be seen on an escalator that was taped off as well.