The BART Police Department released images of John Lee Cowell, 27, who is a suspect wanted for fatally stabbing 18-year-old Nia Wilson and wounding her sister at MacArthur Station Sunday night.
Cowell is Caucasian, stands 5’ 8”, and weighs 190 pounds. Cowell has short, dark hair as well as a closely cropped beard and mustache.
Cowell should be considered dangerous and anyone who sees him should immediately call 9-1-1.
BART police officers were already at MacArthur Station when the incident occurred at approximately 9:36 pm and were flagged down about a male suspect on the platform with a knife. Officers arrived on the platform and found two women suffering from stab wounds. Officers immediately began rendering aid to the victims until paramedics arrived. Nia Wilson succumbed to her injuries and was pronounced dead at the scene. Her sister was taken to a nearby hospital.
It appears both the suspect and victims boarded a BART train at Concord Station at the same time and then off boarded at MacArthur. BART detectives have carefully reviewed video from surveillance cameras on the train the victims and suspect were riding on as well as platform video at MacArthur Station.
The attack happened on the MacArthur platform. BART detectives are sharing images from the surveillance videos with other law enforcement agencies as well as the public.
Investigators also recovered valuable evidence at the scene of the crime.
An anonymous tip from a BART rider has led to the arrest of the suspect wanted in connection with the fatal stabbing of 18-year-old Nia Wilson and the wounding of her sister at the MacArthur BART Station Sunday night. BART police quickly responded to the tip and found 27-year-old John Lee Cowell aboard at Antioch-bound train at the Pleasant Hill Station. Cowell was arrested by BART police officers without incident.