Mom Kills Kids and Self
by Alan Saperstein
Category: American fiction

"Despite the presence of dead bodies, and although it was unpleasant when the protagonist starts moving around the dead bodies (changing their clothes, putting them to bed, etc.) it wasn't gory or gratuitous. The main point is his bizarre emotional bender after finding the bodies of his wife and two children, and many vignettes from their personal histories are revealed in flashbacks."--Goodreads.