I used to run a police homicide unit. The rage behind so many of today’s murders feels new.

It would also help if everyone — law enforcement, the helping professions, lawmakers, the media, the general public — looked on every loss of life as a tragedy. Not just the sympathetic victim in a widely publicized case, but also those who lead troubled lives and whose passing is hardly noted. Every victim was somebody’s son or daughter, sister or brother, friend or neighbor. Remember that.