NEW : Police say they 've received 477 tips -- one on Friday . A second car near mobile home park is searched for clues . Lisa Encarnacion played with 100 friend on Friday , left for a second friend 's house . On Friday afternoon , Sandra came home from school , kissed her mother and left to play with a friend who lives a couple of homes away . It 's not clear whether she ever got to the second house , family says .
NEW : Police say they 've received 477 tips -- one on Friday . A second car near mobile home park is searched for clues . Lisa Encarnacion played with 100 friend on Friday , left for a second friend 's house . It 's not clear whether she ever got to the second house , family says .