The incident happened as follows:
* At around 12:45 the youth (15) mounted a ski mask, and dressed in all black
* 12:55 , he began trying to pry a window in his own aunt's house open
*12:58 Aunt notices, and contacts her brother (the robber's own father, ironically)
*1:00 The brother of the the woman being invaded shoots and kills the armed robber
*1:08 After taking the mask off, the father notices it's his own son.
Now why such a thing happened is hard to say, your guess is as good as ours.