Maybe think about questions you would have for her based on her story.
How did you feel when...?
What were you thinking when...?
What was the hardest part of...?
What would you say to...?
Did you ever feel like...?
What did you do during...?
Those sorts of things. They waited quietly for a long time, ask her what she did with her time, who she talked to about what, games they might've played, what her family and living partners were like, favourite thing they had to eat, etc. But, also consider before the very tragic parts of her life. Maybe ask her about what her aspirations were and her favourite subjects.
Hope that helps!