here is the blurb from the nbc4 website.
School Locked Down After Report Of Man With Gun
POSTED: 11:46 am EST November 7, 2005
UPDATED: 12:13 pm EST November 7, 2005
FORESTVILLE, Md. -- A school in Forestville was locked down Monday morning after a report of a man with a gun near the school, according to authorities in Prince George's County.
Police are searching for a masked man armed with a long gun in a wooded area near Arrowhead Elementary School in the 2300 block of Sansbury Road. SWAT and emergency response teams are also at the scene.