It's the train-wreck effect. No one walks by without slowing down, turning their heads. They lean in close to each other and whisper. "Versace," "shot," "steps." Casa Casuarina, now the property of North Carolina telecommunications mogul Peter Loftin, sits in ostentatiously grand Mediterranean style in the middle of Ocean Drive, awaiting its transformation into an unaffordable boutique hotel. Orange tape surrounds the grand fence. Landscapers stride in and out. But no passersby look beyond the steps where the fashion mogul was gunned down on July 15, 1997. And that's where the tourists pose, in twos and threes and fours, in bikinis and shorts, smiling broadly for each others' cameras. After all, nothing says Miami like a murder site.