Police say this has been going on for two years now.
The suspect is in his early twenties, about 5 feet, 8 inches, 130 to 150 poundsm with long dark hair.
Police say the man has worn a black beanie during the incidents.
There's a $1,000 reward in the case. Anyone with information is urged to call Crime Stoppers at (805) 494-TALK.