"It was a cover-up from the get-go as far as I'm concerned, " says Weisenberger, who also suffers from seizures.

CNN: What killed Frank Branham?

So does Kurt Weisenberger, who lives on the other side of the Freunds, two doors down from the Branhams' former home.

CNN: What killed Frank Branham?

Weisenberger, 69, a retired general contractor, says he hopes the lawsuit will bring out the truth of what happened to the people of McCullom Lake.

CNN: What killed Frank Branham?