An insurance executive killed his wife and daughter inside their $1.7m family mansion before taking his own life, officials said.
David Grodnick, 61, his wife Lora, 62, and their daughter Sloane, 24, were all found with gunshot wounds inside the family's Montgomery Township, New Jersey, home.
The Somerset County Prosecutor's Office announced their identities on Tuesday, while ruling the deaths of the two women as homicides and David's a suicide.
Officials said they were called to the home last Thursday after receiving a call to check on the family.
Police started investigating after failing to make contact with the family, and on Friday they made entry into the property.
A statement from the office said that officers found the two women in separate bedrooms, Grodnick was found with a self-inflicted gunshot wound.
It added: 'The deceased male was positively identified as David Grodnick, age 61, husband to Lora and father to Sloane.
David Grodnick, 61, his wife Lora, 62, and their daughter Sloane, 24, were all found with gunshot wounds inside the family's home
Officers found the two women in separate bedrooms, Grodnick was found with a self-inflicted gunshot wound
Police started investigating after failing to make contact with the family, and on Friday they made entry into the property
The family's home in Grodnick, New Jersey is pictured
Lora and Sloane are seen here with rockstar Rod Stewart
'His cause of death was a gunshot wound of the head, and the manner of death was ruled a suicide.
'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.
'No further information will be available for release at this time.'
According to Montgomery News, Grodnick worked as a senior vice president for Land Services USA, an insurance agency.
He attended the University of Miami and had a degree in business administration from the school, the outlet report as well as a BA in English from McDaniel College.
Sloane had graduated from The Hun School, a private boarding school in Princeton before graduating from the Savannah College of Art and Design.
If you or someone you know needs help, please call or text the confidential 24/7 Suicide & Crisis Lifeline in the US on 988. There is also an online chat available at 988lifeline.org.