Based on the timeline of his teaching/coaching career, either 1995, when he moved from Nebraska to Minnesota or in 2002 would probably be the years that the sexual assault was took place/was reported, IF it actually happened. He could have simply moved for more pay (1995) or retired from coaching to raise his own children (2002). https://www.sportingnews.com/us/nfl/news/tim-walz-football-coaching-career-timeline-minnesota-mankato-west/0e815b44ddc6428665fd317a

Based on the timeline of his teaching/coaching career, 2002 would probably be the year that the sexual assault was reported, IF it actually happened. He could have simply retired from coaching to raise his own children. https://www.sportingnews.com/us/nfl/news/tim-walz-football-coaching-career-timeline-minnesota-mankato-west/0e815b44ddc6428665fd317a