The Princeton, New Jersey, man accused of killing his brother and a family cat allegedly told police he had a "fit of madness" when they responded to the scene of the crime.

Matthew Hertgen is facing multiple charges, including first-degree murder, for the death of his younger brother, Joseph ...

Matthew Hertgen is accused of brutally killing his brother, Joseph Hertgen, in Princeton. A relative told police he has ...

As his family was gearing up to attending his brother Joseph Hertgen's funeral on Saturday, Matthew allegedly tried to take ...

The Princeton, New Jersey, man known as a star student in high school who is now accused of killing his brother likely had a ...

David Gelman, CEO of Gelman law and a former prosecutor in New Jersey, says the defense team for Matthew Hertgen, the Princeton man accused of killing his brother on Feb. 22, should seek a mental ...

The preppy Princeton man accused of killing and mutilating his brother, appeared in court Thursday wearing a blue ...

A detective’s affidavit described a gruesome scene when Princeton patrol officers arrived at the brothers’ apartment on the ...

Matthew Hertgen, 31 — who wore a suicide vest during a virtual court appearance earlier in the day — tried to take his own ...

Prosecutors allege that Matthew Hertgen, an ex-soccer payer for Wesleyan University, killed his brother and a cat.