How can I help my friend cope with losing two of her triplets?

She and her boyfriend were expecting triplets; two girls and a boy. The good news is their baby boy is healthy and getting bigger. The bad news is the girls (the boy's twins sisters) didn't make it.

It's been 6 months but yes she's still grieving and is dealing with depression as a result. She's trying to be strong for their remaining baby boy but she's sad (so is the boyfriend) too. Both her and the guy became atheists as a result. They don't even want to hear the word God. Is there a way I can help her?

Updates
1 y
Nothing wrong with atheism. I'm an atheist too (but not because of tragedy, out of personal choice). Anyway I feel bad seeing her that way and wish I could help her get through her grieve in any way possible.
How can I help my friend cope with losing two of her triplets?
Post Opinion