A California man was charged with killing his wife and 11-year-old daughter after he walked into a police station this week and admitted to the crime, researchers say.

Leonid Yamburg, a 51-year-old from Sunnyvale, was”immediately detained by officers” after his entrance Wednesday, according to the city’s Department of Public Safety.

“This is a dreadful tragedy and our hearts are broken for the victims, the victim’s families and the victim’s friends,” the division said in a statement.

Police say Yamburg first entered their headquarters and”told a records clerk he killed his spouse.” They later responded to Yamburg’s home and discovered the bodies of that girl, recognized as Svetlana Nikitina, and also his 11-year-old daughter, the announcement added.

The reason for death is still being examined by a medical examiner, however, Capt. Craig Anderson told KTVU that”it did appear that both the 11-year-old daughter and the wife did sustain some significant head trauma.”

The reason for the murders too isn’t immediately apparent.

The channel reported that Yamburg — who now faces two counts of murder — stopped talking with authorities after his first confession.

Nikitina’s body was found in the garage along with the child’s body was found in a bathroom, according to KTVU.

A LinkedIn profile purportedly belonging to Yamburg says he’s a software engineer, even while Nikitina was a resource teacher who worked with special needs kids in the Cupertino Union School District.

“We are so saddened by the tragedy and are working to support our pupils, staff and community during this very tough time of enormous loss,” Leslie Mains, associate superintendent of the district, informed KTVU.

Neighbors also told the station that the family kept .

“There was indication of anything that’s happening, no hint at all that’s why people are so stunned,” Sanjoy Mondal informed KTVU.