What was the date of the accident?
Getting closer;
http://www.freerepublic.com/focus/f-news/1907687/posts?page=169#169
From the Baltimore Sun article:
Graeme and his 9-year-old sister, Gemma, were passengers in the family SUV in December 2004 when it hit a patch of black ice and slammed into a tree. Both were taken to a hospital with severe brain trauma. Graeme was in a coma for a week and still requires physical therapy.
Think I found it,
http://www.kennedykrieger.org/kki_touch_article.jsp?pid=4884
On December 4, 2004, the car the children were riding in hit a patch of black ice and spun into a tree.
If you go to the link there appears to be a lot more detail of what actually happened to the kids, who obviously have our prayers.