He called 911 on April 28 to say he found the four family members “on the ground and bleeding” in a West Chester apartment where he also lived, about 20 miles (32 kilometers) north of Cincinnati. Each of the four killed had at least two gunshot wounds in their heads.
Police said there was food left on the stove, indicating the family was preparing dinner that evening when they were shot.
Police said repeatedly during the investigation that investigators believed the motive for the crimes was personal.
West Chester Township Police Chief Joel Herzog called the slayings a “heinous crime” but didn’t discuss details or possible motive when announcing the arrest.
Those killed were identified as Shalinderjit Kaur, 39; Amarjit Kaur, 58; Parmjit Kaur, 62, and Hakiakat Singh Pannag, 59.
Singh has said he and Shalinderjit Kaur had been married 17 years and had three children. Family members identified Parmjit and Hakiakat as his wife’s parents, and Amarjit as Parmjit’s sister.
Singh, a truck driver, told The Cincinnati Enquirer he was often away from home. Their three children were staying with other relatives at the time of the slayings, and police have said they are safe.
In a statement after Singh’s arrest, relatives of those slain said they were thankful for the efforts of West Chester police, other law enforcement agencies and the Sikh community of the Cincinnati region, and that they were praying for Singh’s conviction.