Eight people were arrested Monday in a bust of a major marijuana growing operation that included four grow houses in Daly City and South San Francisco, the San Mateo County Sheriff’s Office said Tuesday.Police seized 1,400 marijuana plants, 55 pounds of harvested marijuana, six guns and more than $47,000 in suspected drug profits, Sheriff’s Department spokesman Lt. Ray Lunny said. The marijuana seized has an estimated street value of more than $450,000. Read More