(08/20/12) - A St. Clair County teenager celebrating her high school graduation was killed over the weekend, along with her brother.
The Blewetts were celebrating with a bonfire in St. Clair Township Saturday.
Someone put gas on the wood and Christopher Blewett invited his sister, Savannah to light it.
There was an explosion and the 18-year-old and 27-year-old brother and sister were killed.
Four others were injured.
ABC12 Main Station