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

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

State Police Lt. Ricardo Jorge Santos fatally shot his 33-year-old ex-girlfriend, Lauren Semanchik, and her 29-year-old ...

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 ...

A New Jersey State Police sergeant, who once served on Gov. Phil Murphy's security detail, is suspected of killing his former girlfriend and the volunteer firefighter.

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

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