A man on parole for armed robbery is accused of a brutal attack aboard a Red Line train last week that left a 61-year-old woman ‘brain dead’ and in ‘grave’ condition, officials said.

Mijawon Johnson, 36, was charged with attempted murder, aggravated battery and a misdemeanor count of violating an order of protection, police said. Sunday, a Cook County judge ordered Johnson detained.

CTA employees discovered the woman unresponsive, lying across the seats of a train car around 1:30 a.m. on Thursday near the Roosevelt station, 1167 S. State St. in the Loop, according to police.

Investigators were led to Johnson after CTA footage surfaced showing two men beating and robbing the woman on the train.

Court documents assert that Johnson was one of two suspects on the train and tried to steal the woman’s bag. Johnson allegedly held the woman’s head on a train seat while he punched her in the abdomen and head and “stomped” on her body, according to the documents.

She suffered lacerations and contusions to her face, fractured ribs and trauma to her body. She was taken to Stroger Hospital in critical condition and she remains in “grave” condition on a ventilator, police said.

Johnson, of the 1100 block of North Howe Street, was paroled on August 14 after an armed robbery conviction for which he was placed into custody on March 10, 2021, according to the Illinois Department of Corrections.

Johnson is due back in court on Friday.