Those killed were identified as: Shalinderjit Kaur, 39; Amarjit Kaur, 58; Parmjit Kaur, 62, and Hakiakat Singh Pannag, 59.
Singh had said he and Shalinderjit had been married 17 years and had three children. Family members identified Parmjit and Hakitakat as his wife’s parents, and Amarjit as Parmjit’s sister.
Singh is a truck driver who said he was often away from home. Their three children were staying with other relatives.
Police had said soon after the slayings that they didn’t believe there was a threat to other community members.
Investigators, including divers who searched a pond near the home, combed the apartment complex for clues.
Herzog has attended services at the nearby Sikh temple where the family worshipped. Funeral services were held June 1 at a church in Mason, Ohio. News media reports said family and friends came from India, Canada and other U.S. states for the services.