It started with a story in the Indianapolis Star about executives at USA Gymnastics failing to forward allegations of sexual abuse against young gymnasts to law enforcement.
That led to first one, then two, then a dozen and now hundreds to come forward with allegations of sexual abuse against gymnastics team physician Larry Nassar. Nassar was sentenced to up to 175 years of jail last year.
The gymnastics' group's former CEO and a former trainer have also been arrested on separate charges. Facing dozens of lawsuits, USA Gymnastics filed for bankruptcy in December. The fallout also hit Michigan State University, where Nassar worked in the College of Osteophathic Medicine.
On this special edition of Global Journalist, a look behind the scenes of the Star's investigation of USA Gymnastics with reporter Marisa Kwiatkowski.