A New Jersey State Police trooper shot and killed his ex-girlfriend and a man she was recently dating before taking his own life, according to the woman’s family and a source familiar with the investigation.

Lauren Semanchik, 33, and Tyler Webb, 29, were found dead Saturday in Semanchik’s home on Upper Kingtown Road in Franklin Township at 12:22 p.m., the Hunterdon County Prosecutor’s Office said in a statement Sunday.

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