A New Jersey State Police lieutenant, Ricardo Santos, killed his ex-girlfriend and her new boyfriend before dying by suicide.

Sgt. First Class Ricardo Santos, 45, committed the heinous slayings after stalking and harassing his ex of just three months, ...

Jeannine Semanchik, the victim's mother, said her daughter tried to alert authorities about her unstable ex-boyfriend, but no ...

Allison said Semanchik treaded carefully about whether to lodge a restraining order because Santos was a police officer while ...

Authorities say New Jersey State Police lieutenant shot and killed his ex and her new boyfriend before turning the gun on ...

A New Jersey state policeman, who had previously been tasked with protecting the governor, shot and killed his ex-girlfriend ...

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

Prosecutors said Ricardo Jorge Santos followed Lauren Semanchik home from work and then fatally shot her and Tyler Webb.

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

Prosecutors in New Jersey say a state trooper killed his ex-girlfriend and her boyfriend, a volunteer firefighter, before ...

Killed in what investigators said was a "targeted act" in Pittstown, Henderson County, were 33-year-old Lauren Semanchik, a ...

A memorial has been set up outside Long Valley Animal Hospital for one of two victims shot and killed by a New Jersey state ...