The Brief A woman reported she was sexually assaulted on a CTA Yellow Line train in Evanston early Friday morning. Police in north suburban Evanston have arrested a suspect in connection with a reported sexual assault on a CTA train early Friday morning. Thanks to multiple public tips, the suspect was taken into custody at the Howard Street CTA Station at 7519 N. Paulina Avenue. Investigators learned the offender boarded the train at the Howard Street CTA Station at 7519 N. Paulina Street in Chicago and remained onboard the train until the attack. Image 1 of 3 ▼ Police in north suburban Evanston are investigating a reported sexual assault on a CTA train that happened early Friday morning.