Peter Robert Costello, a 17-year-old male from Chicago, IL, was found dead on October 22, 2014, in what appeared to be a tragic incident. The young teenager, identified as Peter Robert Costello, was discovered alongside a 28-year-old man named Matthew Santon in a home located in the West Lawn neighborhood on the Southwest Side of Chicago. Both individuals had sustained gunshot wounds and were pronounced dead at the scene. The Cook County medical examiner's office confirmed their identities and a
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