Mark Williams/Liberia/Sex Assault, Terroristic Threats

Liberian national Mark Williams was identified in social‑media material reproducing a Homeland Security graphic as a sex‑strongarm offender arrested in Moorhead, Minnesota. The posts list his country of origin as Liberia and describe him as convicted of sex assault and a separate sex offense, with the “sex strongarm offender” label indicating a violent sexual‑assault history. They also group his name alongside offenders referenced for terroristic‑threats‑type state offenses, suggesting additional conduct involving threats of serious harm.

According to these publicly shared materials, Williams was taken into custody in Moorhead as part of a broader focus on noncitizens with serious violent and sexual‑offense histories. The posts emphasize his status as a convicted sex offender rather than detailing the underlying incidents, and they do not yet provide a full court‑record narrative on sentencing, failure‑to‑register allegations, or immigration outcomes.