cnn has uncovered more details. reporter: two teenagers still in a coma after they muwere exposed to a deadly pesticide while on spring break with their family. cnn has learned it was probably illegally used numbers of times according to officials. the governor said even his own condominium complex was fumigated without his knowledge in 2013. what these companies did or appear to have been doing is clearly a violation. and they ll be held accountable for. it. reporter: the epa investigation has already found evidence that terminix may have illegally used the substance four times including the day before thanksgiving on a vacation villa on st. croix and villas on st. john last fall. authorities are tracking down the residents who stayed at the villas. terminix didn t want to talk about it. the government official says you guys have used this