Sibley Mick Harte Was Here by Barbara Park

Phoebe Harte's world is suddenly turned upside when her brother Mick is killed. Mick was a neat kid that anyone would love to meet.  He freaked his mom out when he put a ceramic eye in a defrosted chicken; on Halloween he was an inventor of the modern day flush toilet, Thomas Crapper ; he did a wild solo dance in front of the whole school because the music got in his pants.
  Mick was in a bicycle accident. His tire hit a rock and he skidded into the back of a passing truck.  If only he had worn his bicycle helmet....
    Barbara writes this book with lessons of sadness, humor, and hope. 
    Great  read intended for 4th grade and up.~ Mary Jo