Former Marquette track and field athlete accused of sexual contact with 13-year-old

Former Marquette track and field athlete accused of sexual contact with 13-year-old

Kelli Arseneau, Milwaukee Journal Sentinel

Tue, January 20, 2026 at 6:12 PM UTC

2 min read

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A former Marquette University track and field athlete faces a dozen felony charges for allegedly engaging in sexual activity with a 13-year-old girl.

William Waterstradt, 21, of the village of Allouez, near Green Bay, is charged in Langlade County Circuit Court with three counts of second-degree sexual assault of a child, one count of sexual exploitation of a child, three counts of using a computer to facilitate a child sex crime, two counts of child enticement for sexual contact, and three counts of exposing genitals or intimate parts to a child.

Waterstradt was a senior at Marquette in the 2025-26 school year. His attorney, Jonathan LaVoy, told the Milwaukee Journal Sentinel that Waterstradt has since withdrawn from the university. According to Marquette University Athletic's website, Waterstradt was on the track and field team during the 2024-25 season. Prior to that, he ran track at Northern Michigan University. He is not listed on the university's 2025-26 track and field online roster. Waterstradt attended De Pere High School.

"William and his family are taking these allegations seriously and I am in the process of obtaining police reports and other evidence," LaVoy said in a statement.

Kevin Conway, spokesperson for Marquette, confirmed that Waterstradt is not enrolled at Marquette. Conway said the university does not to comment on ongoing legal matters.

Court records say Waterstradt was charged Jan. 13, and is currently held at Langlade County Jail. Bail has been set at $500,000.

According to a criminal complaint, the 13-year-old girl told police a person she believed to be a 17-year-old named Connor O'Neill added her on Snapchat in July 2025. Through review of Snapchat, emails, photos and location date, investigators identified "Connor" as 21-year-old Waterstradt.

The girl said the two shared photos, which "Connor" initiated to turn sexual. They then met up in person for sexual contact on three occasions, all in or near the Langlade County town of Evergreen, according to the complaint.

The girl told police that on one occasion, Waterstradt took nude pictures her. On another, he gave her beer, the complaint says.

Early on in their communication, the girl told Waterstradt she was 13 years old, and "expected that he would limit or cut off contact but that he continued with no issues," the complaint says. Investigators viewed messages between Waterstradt's and the girl's accounts in which Waterstradt acknowledged the girl's age and that they had sexual intercourse.

From a review of Snapchat records, investigators determined that Waterstradt claimed to be a 16- or 17-year-old named Connor in conversations with at least eight different accounts, the complaint says.

Waterstradt has a preliminary hearing scheduled for 2:30 p.m. Jan. 21 at Langlade County Courthouse.

Contact Kelli Arseneau at (920) 213-3721 or karseneau@gannett.com. Follow her on X at @ArseneauKelli.

This article originally appeared on Milwaukee Journal Sentinel: Marquette track and field athlete accused of sexual contact with 13-year-old

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