Having spent his life in the public eye, Prince rarely stood outside his own image. Late at night, in the privacy of Paisley Park, he might be “a little more relaxed” and swap high heels for slippers, Mr. Parke said. But otherwise, he added, “he looked exactly as you’d expect him to look all the time. He was dressed, his hair was done, he had the makeup on, the eyeliner. It was a very conscious choice on his part to present a look, to say, ‘This is who I am.’ He definitely felt he had to have that veneer of Prince at all times.”