17-year-old Lockport Man Charged with Murdering a 7-week-old Infant

The Offices of the Will County Sheriff along with the Will County State's Attorney have upgraded charges against Jonathan Karlson, 17, Lockport, from aggravated battery to murder. In light of a Cook County Medical Examiner's ruling that the cause of death was a homicide.

Karlson was arrested Dec. 7 in connection with the infant's death. According the Will County Sheriff's report, the night before his arrest, Karlson was babysitting for the infant while her 18-year-old mother was at work. He is accused of shaking 7-week-old Aliyah Gedminas, causing head trauma.

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Will County Sheriff's police say, "Karlson and the infant's mother were en-route to Silver Cross Hospital on (Dec. 6) as a result of the baby being reportedly unresponsive. While en-route, the infant's condition worsened and emergency personnel responded."

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Police were contacted "after it was noted that the infant body displayed signs of child abuse. The infant was later transferred to Lurie Children's Hospital," where she died from her injuries.

Karlson remains in Will County Jail. Bond is set at $2 million. His next court date is scheduled for Jan. 2.

According to a SunTimesMedia story, Karlson and the baby's mother had been dating. Click here for more details on the couple's relationship.  

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Police blotter information is provided by the New Lenox Police Department and the Will County Sheriff's Department. Charges are not evidence of guilt. They are a record of police actions taken on a given day, and persons charged with a crime are presumed innocent until proven guilty in court. If you or a family member are charged or cited and the case is subsequently adjudicated, we encourage you to notify the editor. We will verify and report the outcome. If you have information about an unsolved crime, call the Investigations Unit at 815-462-6100.