Background: Riverside University High School in Milwaukee, Wis. (Google Maps). Inset: Demitrios Visvardis (Milwaukee County Sheriff”s Office).

The incident, captured by surveillance cameras, involved Visvardis and an 18-year-old student, Shrone Dunn, who has cerebral palsy. According to a criminal complaint viewed by Law & Crime, Shrone was on a hallway floor on November 12, 2025, when Visvardis attempted to assist her with her shoes. This interaction reportedly escalated into a brief struggle, ending with Visvardis slapping the student.

Police have indicated that the entire confrontation was recorded by the school’s surveillance system. Following the incident, officers interviewed teachers familiar with Shrone’s condition and communication abilities. These educators noted that Shrone appeared “upset” after the altercation. Based on their findings, authorities have stated that it is reasonable to infer that Shrone sustained injuries as a result of being slapped by Visvardis.

Police said the entire incident was caught on surveillance cameras.

After police interviewed teachers who were familiar with Shrone’s condition and ability to communicate, they said that she seemed “upset” after the alleged incident. Police said that based on what they learned, “it is a reasonable inference” that Shrone was hurt after Visvardis slapped her.

In an interview with local Fox affiliate WITI, Shrone’s mother Shirley Dunn said she saw the video of the alleged incident. Dunn told the station that Visvardis “picked [Shrone] up by her shoulders” and “slammed her on the chair.” She said her daughter likely told Visvardis to stop hitting her, “and that’s when he slapped her.”

Dunn told WITI that her daughter still has trouble sleeping two months after the alleged incident.

WITI obtained a statement from Jeff Lasky, the principal of Riverside University High School, that acknowledged that Visvardis allegedly slapped the student and was “not currently working in the school.” Lasky said the school alerted the police to the alleged incident and was conducting its own investigation in addition to the criminal investigation by the police.

Visvardis pleaded not guilty to a misdemeanor charge of battery on Monday. He posted $1,000 bond and is due back in court on Feb. 23.