>> things have been open for me because of his music. he broke down walls. he broke down barriers. he brought people together. the impact is profound. >> reporter: president obama paid his respects by quoting him, "a strong spirit transcends rules," prince once said, and added the president, "nobody's spirit was stronger, bolder or more creative." tributes to the legend by fellow artists have set instagram and twitter on fire. from elton john, "the greatest performer i have ever seen." from friend spike lee, "i miss my brother. prince was a funny cat, great sense of humor." and from oprah, "the doves really are crying now." the police here are currently investigating the cause of death. scott, we're outside prince's residence where people have been coming all day to pay their last respects and to fashion this small tribute to his memory. >> pelley: dean reynolds