A family of four from Delaware is back home after their villa in the U.S Virgin Island was apparently fumigated while they were in the building by the Terminix firm. The chemical used was a deadly agent, methyl bromide, something that would never be used for such a purpose. According to reports, the teenage boys, ages 16 and 14 are in comas, in critical condition at a Philadelphia hospital after suffering seizures. Their father is conscious, but cannot move, and their mother has been released. Methyl Bromide is used in farming and insect control in the U.S. and is a highly restricted substance, but is not illegal. According to the U.S. Environmental Protection Agency, high exposure to humans can cause central nervous system and respiratory failure.