San Jose Police Chief William Lansdowne says police have what he calls a "potential suspect" in custody.
Jennette Tamayo was taken from her San Jose home on Friday. She walked into a convenience store in a nearby city last night, safe and apparently unhurt.
Police say detectives arrested a man Monday morning who closely resembles a sketch of the suspected kidnapper. They say the man hasn't been booked, and they're still trying to identify him.
Lansdowne says the man was taken into custody after police served a search warrant on his San Jose home.
Police have said the girl was taken by a man who staked out her house and took off with her after fighting with the girl's mother and older brother.
Part of the abduction was captured by a neighborhood surveillance camera.