Two top cops in New Jersey have been placed on leave after the murder-suicide that claimed the life of beloved veterinarian Lauren Semanchik and her new boyfriend raised “serious concerns” about the department’s operations.

A New Jersey State Trooper -- once entrusted with protecting the governor -- gunned down his ex-girlfriend and her new boyfriend before killing himself.

The couple called 911, and a squad car pulled up "at least 10 minutes later," but police never drove up the driveway to speak to the couple, they claimed.