From the first month of 2022, North Texas experienced high-profile crime that gained international attention. And it didn’t end there. A gunman held four people hostage at a synagogue in Colleyville. Two mass shootings in Dallas prompted a citywide crackdown on event promoters. A man on parole was accused of slaying two medical workers, which stirred questions about safety at hospitals and the effectiveness of ankle monitors. Dallas ended the year with fewer violent crimes than in 2021, but for much of 2022, the city’s murder rate trended up. Scores of other incidents gripped the larger region and, sometimes, the...