step down. the cases are not limited to flint. let's bring in cnn's ryan young, who has been following this story. ryan, what are health officials saying about the cause and a possible link here? >> a lot of details in this story. let's start with the idea about the switching of the water. people in flint are blaming the state because their finances were under control of the state. that financial manager to save $4 million switched to the flint river from the detroit river water source. that water ended up being more corrosive and started going through the lead pipes and you see not only do kids have higher levels of lead, but 87 people in far have contracted this disease. ten people have died. they are not sure if the two are linked. there's an investigation going on since 2014. the investigation should end some time around next week. they are.