Luigi Mangione’s shifting defense strategy. A victim’s lover takes the stand. Plus, Keith Morrison's new podcast.

In Manhattan, Luigi Mangione’s defense prepares to use a psychiatric defense, then reverses course. In San Diego County, Maya Millete's lover, Jamey Laird, takes the stand in the trial of her husband, who is accused of killing her. In Dateline Roundup, former Bardstown, Kentucky, police officer Nick Houck enters a plea on a perjury charge; his brother was co…