(WPXI) – Allegheny County police are investigating the death of a three-month-old boy. Officers were called to the 300 block of Fort Couch Road in Upper Saint Clair around 5 p.m. Thursday. Once they were on scene, officers found an unresponsive infant, later identified as Kayden Nguyen by the Medical Examiner’s Office. Paramedics attempted to save the infant but he was pronounced dead at the scene. Police said investigators determined the little boy was left inside a parent’s vehicle for several hours. Homicide detectives are assisting in the investigation and put out the following statement: “Detectives are working to confirm the timeline of events through surveillance video in the area. They are also downloading and reviewing data from the vehicle’s on board computer. Our department is working closely with the Allegheny County District Attorney’s Office and the Medical Examiner’s Office. When the Medical Examiner’s Office determines the cause and manner of death a charging decision will be made.” Anyone with information is asked to call the County Police Tip Line at 1-833-ALL-TIPS.