The surviving brother of Princeton murder suspect Matthew Hertgen sent a warning text message to his youngest brother about ...

Joseph Hertgen received a text from his surviving brother warning about older brother Matthew Hertgen’s mental health about an hour before he was killed ...

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.

The Princeton, New Jersey, man accused of killing his brother and a family cat in a "fit of madness" appeared in Mercer ...

Police believe Matthew may have ripped out his brother's eye and tried to eat it, a law enforcement source told the New York Post. He is also charged with animal cruelty after the family’s cat was set ...

Concerned about Matthew, the brother picked him up around 4:30pm ... 45 minutes after that, Matthew called 9-1-1 to report Joseph's death. Per FOX News Digital, Hertgen appeared in court on ...

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