The Almaden Valley neighborhood in San Jose is on alert following a home-invasion robbery Wednesday afternoon.
Police said an armed burglar got into a home on the 7100 block of Anjou Creek Court by breaking a back door. The burglar then tied up a 17-year-old high school student, who was home alone, and demanded cash.
The robber left the area after the teen told him where he could find valuables, police said. The teen was able to cut himself free and call for help.
The victim's mother said her son is shaken up by the incident, but not hurt. Police credit the teen for doing the right thing under pressure by giving the intruder what he wanted.
Police spent Wednesday canvassing the area and going through video from security cameras residents have placed in the neighborhood.
Resident Tony Frediani said a string of burglaries that hit the neighborhood last year prompted neighbors to put up security cameras. Wednesday's incident raises concerns on how effective security cameras are in deterring crime.
"I'm a little shocked this is the house with more cameras than anyone in the neighborhood," Frediani said. "I'm surprised."
Police have not released a description of the suspect.