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.

Slain veterinarian Lauren Semanchik feared for her life and even spoke of getting a restraining order against New Jersey state trooper Ricardo Santos nearly a year before the deranged ex-boyfriend killed her in a sickening murder-suicide, text messages show.

A New Jersey State Police sergeant fatally shot his ex-girlfriend and her boyfriend before killing himself, Hunterdon County prosecutors say.