One much discussed study, from the early nineteen-eighties, by the Canadian psychologists Martin Daly and Margo Wilson, suggests that parents are more likely to abuse stepchildren than to abuse their own offspring.

NEWYORKER: It Ain��t Necessarily So

Margo Wilson and Martin Daly, famous for a study several years ago which showed that children are far more likely to be killed by step-parents than biological parents, tend to look at things from a Darwinian point of view.

ECONOMIST: Evolutionary biology

While his friends and neighbors on the West Side rioted the night Martin Luther King was assassinated in April 1968, Daly worked late, then drove his brand-new silver Chevy Nova home along back streets to avoid trouble.

FORBES: Pressing For Change

While his friends and neighbors on the West Side rioted the night Martin Luther King Jr. was assassinated in April 1968, Daly worked late, then drove his brand-new silver Chevy Nova home along back streets to avoid trouble.

FORBES: Pressing for change