Police are looking for two men who held up the ALDI's store at 90th and Halsted last Thursday. They shot and killed 54-year-old security guard Reginald Lanier and wounded a 67-year-old woman before fleeing with cash.
Last week, police released a surveillance video of the two suspects, but they are not saying if the man they are questioning has been identified as one of the two men on tape. The men are also suspected of being involved in another ALDI robbery that took place on October 28 at 47th and Ashland.
No charges have been filed. Police say the investigation is ongoing.