LOS ANGELES (AP) — Police in Los Angeles are trying to crack the case of the stolen Andy Warhol prints. Authorities say nine of the late artist's prints were stolen from a Los Angeles business and replaced with copies. The Los Angeles Times says the silk-screen prints — signed by Warhol — were swiped sometime within the past three years. But the owners tell police they didn't notice the switch until two of the prints were taken to a shop to be reframed. The prints are valued at $350,000.