Eagles head coach Andy Reid's son died from a self-injected heroin overdose ... according to the Coroner's investigation of Garrett Reid's death. Garrett was found dead on August 5 in his room at Lehigh University ... where the Eagles were holding training camp. The Northampton County Coroner and…

The oldest son of Philadelphia Eagles coach Andy Reid was found dead this morning in a dorm room at Lehigh University, this according to several reports. The Lehigh University Chief of Police confirmed that Garrett Reid, 29, was found dead at Eagles training camp after a 911 call was placed at…