Rescue hopes dim as tapping fades by Meg Laughlin, PORT-AU-PRINCE, Haiti Wednesday morning at 6 a.m., a security guard at the smashed Hotel Montana woke up search and rescue chief Fred Golba, from Palm Bay. The guard said he was hearing tapping in the rubble, eight days after the earthquake and four days after the last live person had been rescued. At this luxury hotel perched in the wealthy hill district of Petionville, rescue teams from half a dozen countries have swarmed over this mound of rubble for a week desperately trying to free the international clientele that packs the hotel year-round. Twelve people were rescued alive between Jan. 13 and Saturday, but 25 are still missing. Thirteen of them are from the United States, some of them students and faculty from Lynn University in Boca Raton. It has been four days since the last person was pulled out alive. So the tapping heard early Wednesday gave a needed boost to the weary rescue teams. search. After digging a foot deeper in three hours, they took Mani, their German shepherd to the opening. The dog crawled in and was silent. No life. 'We are hoping today is not the turning point for finding anyone alive,' said Salvo. Golba doesn't want to believe that's true: 'People have been found alive in similar situations after two weeks,' he said. 'I'm gong to keep looking and hoping until then.' And, after Tuesday? 'I don't want to think about that now,' he said. 'Tomorrow we'll be back here working.' Information from the Associated Press was used in this report. 