Oak Lawn Police Chief Michael Murray held a press conference at Village Hall regarding the death investigation of an infant that was found gravely injured in a home in the 6600 block of West 91st St. on Sunday morning. The baby was later pronounced dead at Advocate Christ Medical Hospital. The baby later died. A relative is being questioned in the infant's death. The investigation continues and the Cook County State's Attorney has been contacted. No charges have been filed as of Sunday evening. Patch will continue to update this story.