The campus in northwest Washington, D.C., was on lockdown for
about two hours while D.C. Metropolitan Police and the
university's public safety department investigated the report,
according to the university's website and D.C. police.
A university spokeswoman initially reported that a suspect was
in custody. But D.C. Police spokesman Hugh Carew said the
reported gunman was actually an off-duty D.C. officer. Someone
had spotted his gun and made the call about a gunman on campus.
"The system worked," said Carew of the outcome of the incident.
(Reporting by Mary Wisniewski; editing by Paul Simao and Jackie
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