Sexual abuse allegations continued to roil figure skating on Friday when a lawsuit was filed against Richard Callaghan, a once prominent coach of Olympians who has faced public accusations of improper conduct that stretch back two decades.
Adam Schmidt, 34, a former skating student of Mr. Callaghan’s, filed a lawsuit in San Diego saying that Mr. Callaghan had repeatedly abused him from 1999 to 2001, beginning when Mr. Schmidt was 14 years old. Mr. Schmidt became the fourth male skater to have publicly accused Mr. Callaghan of improper behavior during a period from the early 1990s to the early 2000s.