Princeton preppy murder victim received warning text from other brother hour before slaying
By Audrey Conklin Fox News
Published March 7, 2025 4:00am EST
NJ man accused of killing his brother, family cat in 'gruesome' case: 'Sick and sadistic'
The surviving brother of Princeton murder suspect Matthew Hertgen sent a warning text message to his youngest brother about an hour before he was murdered.
Matthew Hertgen, 31, is accused of murdering his 26-year-old brother, Joseph Hertgen, in the family's Princeton apartment, allegedly with a knife and golf club. He is also charged with animal cruelty related to the death of a cat.
Matthew's surviving brother allegedly spent time with him hours before the alleged crime on Feb. 22, a Saturday, according to a probable cause statement obtained by Fox News Digital.
The brother apparently told police that Matthew had "suffered from severe mental illness for the past five years."