A New Jersey insurance executive fatally shot his wife and daughter before turning the gun on himself inside of their mansion, according to county officials.

David Grodnick, 61, his wife Lora Grodnick, 62, and daughter, Sloane Grodnick, 24, were each found with gunshot wounds to the head in the Montgomery Township home on Oct. 2, according to the Somerset County Prosecutor’s Office.

Investigators determined Lora and Sloane’s deaths to be homicides and David’s a suicide.

David Grodnick allegedly killed his wife and daughter before committing suicide, according to county officials. VSCO/Sloane Grodnick

Investigators at the scene of the murder-suicide in Montgomery Township on Oct. 6, 2026. Aristide Economopoulos for NY Post

It was not immediately clear how long the three had been dead.

Cops were first called to a home on Wild Azalea Lane at about 2:59 p.m. on Oct. 1, after receiving a request for a welfare check on the residents, according to the prosecutor’s office. 

Officers were unable to locate the occupants and an investigation began into their whereabouts.

They gained entry to the home just before 6 p.m. the next day and discovered the three bodies.

Lora and Sloane were found in separate bedrooms and David was found elsewhere in the home with a gun still in his hand, prosecutors said.

All three were declared dead at the home, which is valued by Zillow at $1.75 million, by medical personnel from Robert Wood Johnson University Hospital in Somerset. 

Sloane and Lora Grodnick posing for a photo with singer Rod Stewart in 2019. VSCO/Sloane Grodnick

Sloane Grodnick seen in a photograph from 2019. Obained by The Post

“The investigation, which remains ongoing, has yielded that the homicide deaths of both Lora and Sloane Grodnick were an isolated incident and there are no threats to the public from this tragic occurrence,” Somerset County Prosecutor’s Office said in Tuesday’s release.

David Grodnick was a senior vice president and underwriting counsel for Land Services USA, a Philadelphia-based insurance agency working on commercial real estate transactions across the country, according to the Montgomery News.

He had a degree in business administration from the University of Miami and a BA in English from McDaniel College, where he played lacrosse, the outlet reported.

Sloane Grodnick and her father David Grodnick in 2018. VSCO/Sloane Grodnick

Sloane was pursuing a master’s degree at master’s degree at the Rhode Island School of Design. Obained by The Post

The mansion of New Jersey insurance executive David Grodnick is pictured on Tuesday, October 6, 2026, in Montgomery Township, N.J. Aristide Economopoulos for NY Post

The mansion, seen with police tape as the residence where an ongoing investigation is occurring into the deaths of David Grodnick, Lora Grodnick, and Sloane Grodnick. Aristide Economopoulos for NY Post

Sloane Grodnick graduated from The Hun School, a ritzy private boarding school in Princeton, before graduating from the Savannah College of Art and Design, according to the Montgomery News.

She had been pursuing a master’s degree at the Rhode Island School of Design.

The family had moved to Montgomery Township from Princeton and were members of the exclusive Bedens Brook Country Club in Skillman as well as TPC Jasna Polana, a premier private club in Princeton.