The FBI has opened an investigation into the death of former Indianapolis Colts owner Jim Irsay, team officials have confirmed. The Colts issued a statement saying they were “aware of the investigation” but that they had not been contacted by the FBI nor been served with subpoenas. Irsay's three daughters said in May their father died “peacefully in his sleep.” But in late August, The Washington Post reported Irsay's continuing battle against a painkiller addiction had led to three overdoses in the five years preceding his death. The Post also reported in August that Irsay was prescribed ketamine, which is most commonly used as a general anesthetic, in his final months and that police were called to the hotel room where Irsay died in Beverly Hills, California.