New year brings a grim wave of mass killings across America

A year ago, the U.S. marked its first deadly gun rampage of the year on Jan. 23. By the same date this year, there have been six mass killings that have claimed 39 lives, leaving communities nationwide reeling from the onslaught of violence.

Eleven people killed as they welcomed the Lunar New Year at a dance hall popular with older Asian Americans. Seven Chinese and Latino farmworkers killed amid the serene beauty of California’s Half Moon Bay. A 17-year-old mother and her baby shot dead in an attack that killed...