instances of abuse since the summer of 2007 before she finally told her mother to protect her younger sisters. johnson is the great-grandson of the company's founder worth an estimated $2 billion. though he'd run a separate family company since the 1990s, he's part of the fifth generation of johnsons to own and run the maker of such household products and household names as windex, drano and pledge. >> s.c. johnson, a family company. >> this is a personal matter for curt johnson. it has absolutely no bearing on s.c. johnson. >> reporter: company chairman herbert fifk johnson iii told ployees, unfortunately, no family is immune to crisis. i love my brother and the news of these claims have been very devastating. johnson is free on $500 million cash bond. if convicted of the charges, he faces up to 40 years in prison. chris? >> nbc's john yang in racine,