In case you need more material, I have three suggestions:

The Bonesetter's Daughter, Amy Tan - a girl deals with her caregiver's suicide

Durable Goods, Elizabeth Berg - a daughter deals with her mother's unexpected death

The Time Traveler's Wife, Audrey Niffenegger - I haven't read this one, it was just recommended to me, but I think it is a husband dealing with a wife's unexpected death