Documented case
Police investigation of an alleged sexual assault at a fraternity house near the University of Chicago
A woman reported that she was sexually assaulted during a party at the Alpha Epsilon Pi fraternity's Lambda chapter house, near the University of Chicago campus, early on October 11, 2026. Chicago police are investigating with the University of Chicago Police Department. The woman is not affiliated with the university. In its community alert, the university said fraternities are not recognized student organizations, but that students who belong to them remain subject to university policies and disciplinary procedures. Alpha Epsilon Pi's national headquarters said it had told the chapter not to hold events while the investigation is pending. As of October 12, 2026, no arrest had been reported, according to the sources reviewed.SourcesJournalismSexual Assault Reported at AEPi Fraternity HouseThe Chicago Maroon, October 11, 2026Open sourceRetrieved October 12, 2026University of Chicago student newspaper. Quotes the University's community alert of October 11, 2026, and a statement from Alpha Epsilon Pi's national organization. Marked as updated 8:15 p.m. October 11 to add the national organization's comments.Supports: University's description of its relationship to fraternities, from its community alertLocation in source: Articlefraternities are not recognized student organizations and have no formal affiliation with the University
JournalismWoman says someone sexually assaulted her fraternity house near UChicago campus: policeABC7 Chicago (WLS-TV), October 12, 2026Open sourceRetrieved October 12, 2026Reports Chicago police statements and the University's alert, and prints the full statement of Alpha Epsilon Pi Headquarters. The headline is as printed (it omits a word).Supports: National fraternity's directive to the chapterLocation in source: AEPi Headquarters statementthe chapter has been told to not hold any events or programs
- Institution
- University of Chicago
- Setting
- Off campus
- Documented events
- 3
Timeline
- AllegationAlleged incident
A woman reported that a man sexually assaulted her at about 2 a.m. on Sunday, October 11, 2026, during a party at the house of the Lambda chapter of the Alpha Epsilon Pi fraternity, according to Chicago police and a University of Chicago community alert as reported by the Chicago Maroon, the Chicago Sun-Times and ABC7 Chicago. According to the alert, the suspect, who has not been identified, fled the house after another person intervened. She was treated at the University of Chicago Medical Center. This is a reported allegation; no one has been charged.SourcesJournalismSexual Assault Reported at AEPi Fraternity HouseThe Chicago Maroon, October 11, 2026Open sourceRetrieved October 12, 2026University of Chicago student newspaper. Quotes the University's community alert of October 11, 2026, and a statement from Alpha Epsilon Pi's national organization. Marked as updated 8:15 p.m. October 11 to add the national organization's comments.Supports: Report of the assault and location, per the University's alertLocation in source: Article
A woman reported being sexually assaulted at the house of the Lambda chapter of the Alpha Epsilon Pi (AEPi) fraternity early Sunday morning
JournalismSexual Assault Reported at AEPi Fraternity HouseThe Chicago Maroon, October 11, 2026Open sourceRetrieved October 12, 2026University of Chicago student newspaper. Quotes the University's community alert of October 11, 2026, and a statement from Alpha Epsilon Pi's national organization. Marked as updated 8:15 p.m. October 11 to add the national organization's comments.Supports: Suspect fled after someone intervenedLocation in source: Articlean unidentified suspect fled the building after an individual intervened
JournalismWoman says someone sexually assaulted her fraternity house near UChicago campus: policeABC7 Chicago (WLS-TV), October 12, 2026Open sourceRetrieved October 12, 2026Reports Chicago police statements and the University's alert, and prints the full statement of Alpha Epsilon Pi Headquarters. The headline is as printed (it omits a word).Supports: University alertLocation in source: ArticleAn alert by the University of Chicago said the incident occurred during a party at a fraternity house.
JournalismWoman, 21, sexually assaulted at frat house near the University of Chicago in Hyde ParkChicago Sun-Times, October 12, 2026Open sourceRetrieved October 12, 2026Reports Chicago police statements; attributes the fraternity's name to the Chicago Maroon.Supports: Time of the reported assault, per Chicago policeLocation in source: ArticleThe woman told officers the assault happened around 2 a.m. Sunday
An incident as described in an allegation. Not a finding that it occurred.
- ReportReported to university
The University of Chicago Police Department learned of the report the same night: according to the Chicago Maroon, a UCPD officer on patrol was flagged down after the incident. That afternoon the university issued a community alert. It said fraternities are not recognized student organizations and have no formal affiliation with the university, but that students in fraternities remain subject to university policies and disciplinary procedures, and it asked anyone with information to contact Chicago police or UCPD. A university spokesperson did not immediately say whether the university was pursuing its own investigation, according to the Maroon.SourcesJournalismSexual Assault Reported at AEPi Fraternity HouseThe Chicago Maroon, October 11, 2026Open sourceRetrieved October 12, 2026University of Chicago student newspaper. Quotes the University's community alert of October 11, 2026, and a statement from Alpha Epsilon Pi's national organization. Marked as updated 8:15 p.m. October 11 to add the national organization's comments.Supports: UCPD's involvement that nightLocation in source: Article
A UCPD officer on patrol was flagged down following the incident
JournalismSexual Assault Reported at AEPi Fraternity HouseThe Chicago Maroon, October 11, 2026Open sourceRetrieved October 12, 2026University of Chicago student newspaper. Quotes the University's community alert of October 11, 2026, and a statement from Alpha Epsilon Pi's national organization. Marked as updated 8:15 p.m. October 11 to add the national organization's comments.Supports: Content of the University's community alertLocation in source: Articlestudents in fraternities remain subject to University policies and disciplinary procedures
JournalismSexual Assault Reported at AEPi Fraternity HouseThe Chicago Maroon, October 11, 2026Open sourceRetrieved October 12, 2026University of Chicago student newspaper. Quotes the University's community alert of October 11, 2026, and a statement from Alpha Epsilon Pi's national organization. Marked as updated 8:15 p.m. October 11 to add the national organization's comments.Supports: Whether the University opened its own processLocation in source: Articledid not immediately respond to questions about whether UChicago was pursuing an investigation independent from the CPD’s
A report was made to the institution.
- ReportPolice report
The Chicago Police Department is investigating the reported assault, with support from the University of Chicago Police Department. As of October 12, 2026, no arrest had been reported in the sources reviewed.SourcesJournalismSexual Assault Reported at AEPi Fraternity HouseThe Chicago Maroon, October 11, 2026Open sourceRetrieved October 12, 2026University of Chicago student newspaper. Quotes the University's community alert of October 11, 2026, and a statement from Alpha Epsilon Pi's national organization. Marked as updated 8:15 p.m. October 11 to add the national organization's comments.Supports: Investigating agenciesLocation in source: Article
The Chicago Police Department is conducting an investigation with support from UCPD.
JournalismWoman, 21, sexually assaulted at frat house near the University of Chicago in Hyde ParkChicago Sun-Times, October 12, 2026Open sourceRetrieved October 12, 2026Reports Chicago police statements; attributes the fraternity's name to the Chicago Maroon.Supports: Chicago police investigationLocation in source: ArticleChicago police are investigating
A report was made to law enforcement. Not a finding that a crime occurred.
No outcome was located in the public sources reviewed. This does not mean the matter was not resolved.
Status labels
These labels are distinct legal and procedural stages and are never used interchangeably.
- Allegation
- A claim made by someone. Not a finding.
- Report
- A report was made to police or the university. Not a finding.
- Investigation
- An investigation began or was reopened. Not a finding.
- Legal proceeding
- Arrests, charges, and prosecutors' decisions. Not a verdict.
- Court outcome
- A court's decision: conviction, acquittal, or dismissal.
- University outcome
- The result of the university's own process, which differs from a court.
- Resolution
- Parties settled. Usually not a finding of liability.
- Institutional change
- The institution changed a policy or practice.
Coverage
Journalism about this case, selected by researchers. Summaries are ours, not the publisher’s headline.
October 12, 2026Case development
Police say a 21-year-old woman says she was sexually assaulted at a fraternity house near the University of Chicago during a party, and Area One detectives are investigating.
October 12, 2026Campus safety
Reports that police are investigating after a woman said she was sexually assaulted at an Alpha Epsilon Pi fraternity house party near the University of Chicago, and that another person intervened and the attacker fled.
October 12, 2026Case development
Reports that Chicago police are investigating a reported sexual assault at the Alpha Epsilon Pi fraternity house near the University of Chicago, and the fraternity says it is cooperating with the investigation.