The father wants facts? Here is a fact. If you had not left your two sons alone and simply were a part of their lives, you might have gotten some idea what they were getting into and put a stop to it. You were absent and did not perform your paternal responsibilities. Much like Adam Lanza’s father who claimed he had “no role” in his son’s life.
I thought the parents were living in the US up until a year or so ago?
I suspect he's the one who led them down this road to radical islam and jihad.