Former Student Accused of Seton Hall Bomb Threat

A former student has been accused of last week's bomb threat at Seton Hall University, according to a statement issued Monday evening.

Acting Essex County Prosecutor Carolyn Murray and South Orange Police Chief James Chelel issued an arrest warrant for Dennis Mamrosz, 24, of Yonkers, N.Y., charging him with third-degree terroristic threats.

The South Orange Police Department (SOPD) received last Thursday a copy of a threatening email from a tipster, authorities said. After a building-by-building search of the campus, the Essex County Sheriff’s Department K-9 Unit found no bombs or explosives, according to Essex County Sheriff Armando Fontoura.

Mamrosz is currently in Westchester County Jail in Yonkers on unrelated charges, and authorities will extradite him on the SHU charges, police said. Bail has been set for $20,000, police said. 

Mamrosz was a student at Seton Hall University until 2010 but did not graduate, police said. He was not incarcerated at the time of the threat, police said.

The investigation was conducted jointly by the SOPD and the Essex County Prosecutor’s Cyber and Major Crimes Units.