<p>September 9, 2003 -- THE small boy struggled to peek his blond head over the church podium before he piped up with his tiny whisper of a voice.</p>
<p>"God bless America," Christopher, 5-year-old nephew of slain firefighter Michael Ragusa, sang fearlessly, all by himself, until his child's voice rose to the rafters of Brooklyn's St. Bernard's Church.</p>
