A nearly daylong investigation into a home invasion robbery in the San Fernando Valley early Thursday led to a lengthy standoff with the potential suspects nearly 15 miles away the next day.

The initial incident began at around 4:30 a.m. on Thursday at a mansion in Woodland Hills , where police were called to Calvert Street after learning of a robbery and possible kidnapping.

Investigators remained on scene more than 17 hours after they first arrived at the home, where SkyCal spotted a duffel bag filled with what looked to be rifles next to a shattered glass door. They still haven't provided exact details on the circumstances surrounding the incident, but they say that all of the victims were found safe.

The homeowner, who spoke with CBS News Los Angeles anonymously, said that he wa

See Full Page