Based on the context and the answer, generate a question. 

Context: I am troubled as I have not been for some time . I received word late this past week that a friend had chosen to end his life rather than to go on . He was human , as are we all . He had suffered some losses and enjoyed some victories in the course of his life , as have we all .

Answer:

They partially blame themselves and wish that they could have seen this coming and done something to reach out



What is a likely reason that the speaker finds the death of their friend troubling to this extent ?