LOUISVILLE, Ky. (AP) — An Ohio attorney known as the godfather of the modern class-action lawsuit was disbarred Thursday by the Kentucky Supreme Court, which said Stanley Chesley acted unethically in a $200 million settlement involving the makers of the diet drug fen-phen.

The high court concluded that Chesley, who was based in Cincinnati, crossed the ethical line in settling a dispute over health effects stemming from use of the drug. The court concluded that Chesley also refused to acknowledge his conduct was wrong and had dishonest or selfish motives. The decision could result in Chesley being removed as a lead attorney from multiple cases across the country, including pending suits against Toyota.