Prosecutors stated Saturday that a dispute culminating in a fatal push from a moving Chicago Transit Authority (CTA) Red Line train on September 7 began after the victim spat on two individuals involved in the altercation.

Katlar Parchman, 19, from the Garfield Park neighborhood, was identified as the second suspect charged in connection with the death of 29-year-old Christopher Bickham. He is one of four people alleged to have physically assaulted Bickham before forcing him off the train near 69th Street in the Greater Grand Crossing area.

During a detention hearing at the Leighton Criminal Court Building, Assistant State’s Attorney Marilyn Salas informed Judge Deidre Dyer that Parchman, along with a 15-year-old girl and two additional males—who have not been charged—were involved in the attack. Both Parchman and the minor face charges including murder, aggravated battery, and mob action, totaling five felony counts each.

According to prosecutors, the incident originated as a verbal confrontation aboard the southbound train around 2:30 p.m. Bickham, who appeared intoxicated and was reportedly handling other passengers’ belongings, engaged in an argument with the group. The situation escalated when Bickham allegedly spat on Parchman and another individual. Surveillance footage and passenger videos show the group repeatedly punching and hitting Bickham before pushing him to the rear of the train. Two individuals then forced him out of the sliding emergency exit door. Bickham fell onto the third rail and was struck by an oncoming train. He was pronounced dead at the scene.

The court agreed with the prosecution’s request to hold Parchman without bail pending trial and ordered the preservation of video evidence from the train.

Bickham’s family described him as a hardworking individual who had been employed at Amazon since he was 15 and was on his way home when the incident occurred. His father, Christopher Bickham Sr., said his son was deeply loved by his family and expressed hope that those responsible would "get right with God." He lamented the loss of his son’s presence and voice.

Parchman, a certified nursing assistant registered with the Illinois Department of Public Health, has no prior criminal record. She is scheduled to appear in court again on Tuesday. The investigation into the incident remains ongoing, with two other males involved yet to face charges.