>> reporter: lazzaro never saw the gunman's face but he did see his clothes. inside this parking garage, police discovered clothes that matched the description lazzaro gave them. they were next to a stolen pickup truck, and inside were documents. the gunman had vanished, but now police had a name-- andrew cunan. and as it turned out, cunan, was already the focusave nationwide manhunt. former foeb profiler mary ellen o'toole. >> we have what we typically call a spree killer. mr. versace was targeted. >> ninan: you can see rism's full report "murder by design" tonight on "48 hours." up next, a closer look at the american art work that sold for more than $110 million. pain these feet... kicked off a lot of high school games... ...built a life for my family... ...and liked to help others in need. but i couldn't bear my diabetic nerve pain any longer. so i talked to my doctor and he prescribed lyrica. nerve damage from diabetes causes diabetic nerve pain. lyrica is fda approved to treat this pain. lyrica may cause serious allergic reactions or suicidal thoughts or