Possible Clues:

• Casey who said, 'I want a goddamn concerted effort to come out of a record that isn't a fucking uptempo record every time I do a goddamn death dedication!'
• Top-40 DJ Casey
• Detroit-born DJ
• Last name in Top 40 shows
• Secrest's ''American Top 40'' predecessor
• Casey of radio
• Radio host who said of U2: 'These guys are from England and who gives a shit?'
• Hit man?
• Countdown deejay
• Big name in Top 40