St. Louis

Illinois Man Confesses to Vicious Sexual Assault at Gateway Arch National Park in St. Louis

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Published on June 01, 2025
Illinois Man Confesses to Vicious Sexual Assault at Gateway Arch National Park in St. LouisSource: Unsplash/ Wesley Tingey

An Illinois man has confessed to a harrowing incident of sexual assault that occurred within the confines of Gateway Arch National Park back in 2023. Monte Derrell Boatman, a 37-year-old resident of Fairview Heights, acknowledged his guilt in a U.S. District Court in St. Louis to one felony count of aggravated sexual abuse. This admission relates to events that transpired on the grounds of the national park on December 6, 2023.

According to details released in a statement by the U.S. Attorney's Office, Boatman had arrived at the area via Metro, exiting at Laclede’s Landing shortly after 5:15 p.m. on that fateful day. Surveillance footage revealed Boatman crossing paths with the victim near 4th Street and Washington Avenue, only to immediately turn and begin to follow her. He then carried out his attack, forcibly taking the victim into the bushes at knifepoint and repeatedly threatening her life as he committed the assault.

The grim aftermath saw Boatman’s capture by National Park Service rangers after a physical struggle that left one ranger in need of medical attention. At the moment of his arrest, Boatman was already sought on an active arrest warrant for a probation breach tied to a 2009 armed robbery case in the Southern District of Illinois.

As part of the judicial proceedings, it is expected that Boatman will face sentencing on November 12. The severe nature of the charge of aggravated sexual abuse could see him facing up to life in prison and a fine up to $250,000. Both parties in the case, the U.S. Attorney’s office and Boatman’s defense, have concurred to suggest a sentence of 28 years in prison, to be followed by a lifetime of supervised release. Prosecution of the case is being handled by Assistant U.S. Attorney Jillian Anderson, with invaluable support from both the National Park Service and the St. Louis Metropolitan Police Department in the investigation phases, underlining the gravity of this offense and the interagency cooperation that led to Boatman's admission of guilt.