At one point during his college football days, Jon Vaughn was told by the team doctor that he needed his sperm for research purposes.

Vaughn was a star running back for Michigan football. He says he was “terrified of cancer” because his mother was battling it. This led him to do whatever doctors told him to do, especially if couched in the pretense of cancer screening.

And so, as difficult as this is to write, and as horrific as it is for Vaughn to recall, he allowed that doctor to stimulate him so that the sperm could be produced. It happened, according to Vaughn, more than once.

This is the level of terror that one human monster named Robert Anderson allegedly inflicted — on students, athletes and hundreds of others who came to him in the naïve belief that a doctor, as sworn to by the Hippocratic oath, will do you no harm.

Instead, the harm never stopped. It went on for the 36 years that Anderson worked at U-M. It goes on to this day, in the restless nights and haunted thoughts of his former patients.

In a news conference Wednesday morning never quite seen before in Ann Arbor, abuse survivors, dozens of them, stood in street clothes in the hot sunshine of a Main Street lawn — men, women, Black, white, middle-age and older — all behind a podium that was set up just right, with the huge “M” of the Big House in the backdrop of every camera shot.