Sounds like you didn't want to include details, but one day if you'd like to give some of us some hints on the type of strategy and information used, it would be greatly appreciated!
DH, your mom is going to need a lot of loving support now that her religion and belief struction has just commited suicide. There is going to be a grieving process, and she's probably going to catch hell from her husband and others. I'm glad you'll be able to be there to support her.
Ditto the above about the need for support - it will by much harder on her - I am assuming she is in her 40's or older - most of us have a harder time as we age coping with the issues that will arise - and without a social base by that age - hers just disintegrated - it will hit like a ton soon - be there for her.... good luck