Mary Kennedy on Antidepressants, But Sober at Death Autopsy finds 3 antidepressants in Kennedy's blood By Mark Russell, Newser Staff Posted Jul 8, 2012 6:36 AM CDT 6 comments Comments A 2005 photo of Mary Richardson Kennedy, who killed herself in May. A just-released medical report says Kennedy had three kinds of antidepressants in her system at the time of her death. (AP Photo/Peter T. Michaelis, file) (Newser) – Mary Kennedy, Robert F. Kennedy Jr.'s estranged wife who committed suicide in May, had three kinds of antidepressants in her system at the time of her death, but no alcohol, according to a toxicology report released yesterday. The medical examiner found Trazodone, Desmethylvenlafaxine, and Venlafaxine in Kennedy's blood when she hanged herself in a barn at her Westchester home, reports Reuters. Mary Kennedy had a long history of alcohol and drug problems, and had most recently been in rehab in February.