Chicago police have identified a person they want to question in connection with Sunday morning's brutal attack of an elderly man on the CTA Red Line. CBS 2's Asal Rezaei had the latest on the attack. Police had released photos of the two suspects. It appears they know who one of them is. *********************************************** ABOUT CBS 2 NEWS CHICAGO: Honored as the 2021 Edward R. Murrow winner for overall excellence, CBS 2 News Chicago brings you breaking news, weather, compelling exclusive content and award-winning investigative reports from the CBS 2 Investigators. Subscribe to CBS 2 News Chicago on YouTube : null CBS 2 NEWS 24/7 LIVESTREAM: https://www.cbsnews.com/chicago/live/ CBS 2 NEWS WEBSITE: https://www.cbsnews.com/chicago/ FACEBOOK: https://www.facebook.com/cbschicago TWITTER: https://twitter.com/CBSchicago GET THE CBS 2 NEWS APP: https://apps.cbslocal.com/chicago/