Person of interest questioned in East Chatham death, sexual assault

• A 58-year-old man is being questioned by police in Chicago's East Chatham neighborhood.
• The man is suspected of sexually assaulting a 28-year-old woman at gunpoint.
• Another woman's body was found nearby, and the cause of death is under investigation.
• The investigation began after a friend of the assaulted woman contacted the police.
• The police received a 911 call about the incident around 9:20 a.m. on Thursday.