On a cloudy morning last October, Agustin Poblete Ortega stopped by his wife’s house to tell her he was leaving again.
Rosa Icela Nava, then 27, didn’t want him to go.
Her whole life she had been surrounded by men who had gone north, and sometimes never returned.
And while her relationship with Poblete had been rocky over the last year — she had moved out of his family’s house because of his drinking — he was a good father to their two young daughters.
She wanted to ask him to stay, to tell him about the sick feeling in her stomach. But Nava kept her feelings inside, as was her habit.
“I can’t stop you,” she told him.
“Take care of the kids,” he...