BART stabbing suspect John Cowell to make first court appearance for death of Nia Wilson

OAKLAND, Calif. (KGO) -- The man accused of killing 18-year-old Nia Wilson is due in court.

John Cowell may enter a plea in an Alameda County court.

VIDEO: 'He was wiping off his knife' Sister of Nia Wilson recalls horrific attack
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Letifah Wilson spoke to ABC7 News outside a family member's home about a brutal attack in which BART police say John Cowell stabbed both her and her sister at the MacArthur BART Station. Her 18-year-old sister Nia Wilson passed away at the scene.

On Sunday, July 22, John Cowell is accused of stabbing Nia Wilson and her sister Letifah in the neck at the MacArthur BART station. Nia died. Sister Tashiya Wilson witnessed the attack. Cowell fled but thanks to a tip from another BART rider was arrested the next day at another BART station.

The family has filed a lawsuit against BART, claiming the transit system should have banned Cowell for previous threats and fare evasion.

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