Authorities confirmed Thursday that Robert F. Kennedy Jr.'s estranged wife Mary Richardson Kennedy died of asphyxiation due to hanging.
The Westchester County Medical Examiner's office in New York reported its findings after completing an autopsy Thursday morning.
The 52-year-old architect was found Wednesday afternoon hanging in a garage on the property of her Bedford, New York home, ABC News reports. The New York Post reported that she had left a suicide note.
Robert F. Kennedy Jr., the son of former Sen. Robert Kennedy and the nephew of President John F. Kennedy, filed for divorce from Mary in 2010 after 16 years of marriage. The couple has four children together.
The family of Robert F. Kennedy, Jr. issued the following statement on Thursday: "Mary inspired our family with her kindness, her love, her gentle soul and generous spirit. Mary was a genius at friendship, a tremendously gifted architect and a pioneer and relentless advocate of green design who enhanced her cutting edge, energy efficient creations with exquisite taste and style. She applied her talent, energy and passion which were both brilliant and abundant, to advocacy for treatment and finding a cure for food allergies and asthma. She was an instrumental co-founder and driving force of the Food Allergy Initiative to which contributions may be made in her name."