TX - Need help remembering a case

I saw a few years ago a show (not sure if it was 'cold case' or not, but that type of investigative show). A mother is downstairs with her two children, their father is upstairs napping - can't remember details (that's why I want to look it up!) - but, basically, the children are stabbed (both to death, if I recall, or it may be one child, or one child dead)...mother has blood on her but no marks aside from a superficial wound....she has not been charged, or if she was, was acquitted. Most family/friends are deeply suspicious & later were upset when mother held a birthday party for dead child(ren) at their graves....anyway - wondering if anyone remembers this & could give me the name of the case/parents...or if it's been solved in the meantime...thanks!

I'm pretty sure that would be the Darla Routier case.

We have a complete forum devoted just to this sad, sad case:
http://www.websleuths.com/forums/forumdisplay.php?f=51

That was quick! Thank you!

We aim to please at WS. Welcome!