SAN JOSE — A family is in mourning and police are hunting for a gunman after a man and his adult son were shot to death inside their South San Jose home Tuesday evening.

Police confirmed the victims were 61-year-old man Keith Lang and his 29-year-old son Bryan Lang, both of whom were at the home on Rancho Drive near Monterey Road when the shooting occurred.

Very little has been revealed about what led up to the violence inside the fenced-off compound that stands alone among a row of apartment complexes across the street from the Capitol Drive-In. Public records show that the property houses a mobile-home repair business.

The current police account states that just before 9 p.m., a woman called 911 to report a shooting. Responding officers found the two men suffering from gunshot wounds. They were pronounced dead at the scene.

A woman was injured, but not shot, police said. She as taken to the hospital and was expected to survive.

Police swarmed the neighborhood in the aftermath but no suspects were arrested or immediately identified. One person was taken from the scene in a patrol car, and five dogs were removed from the home, but details on those actions were not released.

A woman who spoke briefly with this newspaper through the wrought-iron gate at her driveway said her husband and son were killed in the encounter, and said the shooting occurred during a robbery.

Police have not commented on a motive in the killings, which marked the city’s 27th and 28th homicides this year. At the same point in 2013, 39 homicides were recorded.

Anyone with information about the case can contact San Jose homicide detectives at 408-277-5283 or leave a tip with Silicon Valley Crime Stoppers at 408-947-STOP (7867) or with svcrimestoppers.org.

Contact Robert Salonga at 408-920-5002. Follow him at Twitter.com/robertsalonga.