http://www.burlingtonfreepress.com/specialnews/islelamotte/
The above link has all the stories on this incident. The boys may have been also involved in an attempted murder/arson previously. (check stories at link) I recently purchased a home in Isle La Motte. It is a small out-of-the-way island on Lake Champlain with under 500 residents. I am new there, but the victims and the perpetrators were known well to all. It is a small rural community which is close knit, and this has devastated the community. The murders occured a day after the wedding death, which is also posted in the vermont forum here at FR. It has been a difficult summer.
I know the island well. I used to date a girl who lived there. It seems the culture of death has infiltrated even the smallest towns in quiet places like Vermont.