San Francisco transit rider's tip leads to arrest of stabbing suspect; 1 sister dead, 1 sister injured
KRON / BART Police
John Lee Cowell

By Alexa Mae Asperin, KRON

SAN FRANCISCO -- (KRON) -- The suspect in connection with the fatal stabbing of an 18-year-old girl at the MacArthur BART station Sunday night is now in custody.

It was announced Monday just after 6:45 p.m. that 27-year-old John Lee Cowell, a transient in the Oakland-Emeryville area, was taken into custody at Pleasant Hill BART.

Police say a BART rider's anonymous tip led to the arrest of Cowell, who was found aboard an Antioch-bound train. He was arrested without incident.

Authorities say Cowell stabbed 18-year-old Nia Wilson and her sister 26-year-old Lahtifa Wilson late Sunday. The two were returning home from a family function.

Court documents show a restraining order was filed in April 2016 by Kaiser Foundation against Cowell. Records indicate "civil harassment of employee" as the reason.

FULL STORY: BART rider's tip leads to arrest of stabbing suspect in Pleasant Hill - KRON