A former girls soccer coach at a Largo-area private school was convicted of five counts of child sexual abuse in connection with contact he had with a 16-year-old student, authorities said Friday.

Charles Vasser, 35, of Seat Pleasant, faces more than 100 years in prison at his Feb. 8 sentencing, and will have to register as a sex offender, authorities said. The former coach at Riverdale Baptist School was accused of having sexual contact with a 16-year-old from October 2008 through July 2009, authorities said. The 16-year-old, they said, was a student at the school and played on the soccer team.

Vasser was convicted after a bench trial — meaning a judge, not a jury decided his fate — earlier this week, prosecutors said. Prince George’s County Circuit Court Judge Daneeka Varner Cotton presided at the trial and found Vasser guilty, prosecutors said.

This post has been updated.

Matt Zapotosky covers the Justice Department for the Washington Post's National Security team.