How to help a friend who almost died from suicide?

My friend has been depressed for a long time and felt she could not handle living anymore. Her attempt to take her life was very close but not sucsessful, the same night she attempted to end her life her uncle done the same thing . He was unfortnuatley sucsessful. When the news got to her that her uncle ended his life she broke down saying that it was not a coincidence that he ended his life the same night she attempted to. She is acting really weird since he died she seems to always be in a daze and when you tell her something she never remembers what you said , I want to help her but I dont know what to do. She is already getting profesional help and is on anti-depressents