I know if my child was missing, the last thing I would want to do is not be there for him when he came home. And all mothers hold out hope that their children are alive until the very end.
Or perhaps she grew up in a culture where shame and face are important and if you screw the pooch you seppuku. She probably didn't have a sword so did the gun route.
"The fact that she killed herself makes me think that she knew her son was not coming back."
I think you are right, no parent kills them self while they are still searching for their child.
Ditto what you said.
Fishy?
Police release mother's suicide note
http://tinyurl.com/o357g