LANSING, Mich. — One after one, gymnasts and other victims of a disgraced former sports doctor stepped forward in a Michigan courtroom Tuesday to recount the sexual abuse and emotional trauma he inflicted on them as children, including one who warned that girls eventually “grow into strong women that return to destroy your world.” Nearly 100 victims are expected to address the court during the four-day sentencing hearing for 54-year-old Larry Nassar.