Gary Slaby

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Despite his grief, Gary says he has never blamed his wife for Cecilia's death. "I could have done the same thing very easily," he says. On nights when his wife had to work late, Gary says she'd ask him to pick up the girls from the babysitter's house, a break from their normal routine. A few times, he says he forgot.

"I get out of work thinking about what I'm going to do when I get home, this and that. I'm going up the highway, [I realize,] 'Oh, my gosh. I left her at the sitter's,'" he says. "I would have to turn around, go back and get her."

Gary doesn't hold Brenda responsible, but Brenda still blames herself. "I realized the most important person in the world to me lost out because I didn't plan well enough," she says. "She's the one that slipped through the cracks."