A Danbury woman has been arrested in connection with the untimely death of a 22-year-old Danbury resident in July. An autopsy conducted by the Medical Examiner confirmed the cause as acute intoxication from the combined effects of several substances, which included fentanyl. Based on the circumstances of the death and the report from the medical examiner's office, the investigation pointed to Susan Quinn’s involvement in the death of the 22-year-old.  The 35-year old was arrested on Wednesday and later released.  She will appear in Danbury Superior Court on January 7th to respond to charges of possession of a Controlled substance and Reckless Endangerment.