input. give us time to heal and allow us to sit at the table. reporter: atf investigators are working to determine the fire s cause as hawaiian electric and its subsidiaries are hit with a fifth lawsuit, alleging power lines owned by these companies came into contact with vegetation. reporter: do you regret not sounding the sirens? i do not. reporter: it comes as maui s recently resigned emergency management administrator, herman andaya under fire for not activating the emergency sirens, saying that could have sent people toward the flames we re not stupid. we know what a fire looks like. reporter: with cell service spotty, kindergarten teacher, kim comato says she has been able to reach only 8 of her 23 students families own that you were wrong and it cost lives. these children on the hill, the ones we can t find, those are our students reporter: this is noaa the cadaver dog, they have managed