Was he a “former principle” because he is now dead or was he a “former principle” before he was found dead.
A difference that could have a bearing on the story.
My guess is that he is not a “former principle” but rather a “former principal.”
I think he was the current principal
http://www.wusa9.com/news/news_article.aspx?storyid=64874&provider=gnews
Prince William Elementary School Principal Found Dead