Recent Prince George's County Crime Reports (6 May 2010)

Washington Post (County police reports, and municipal police reports which may cover earlier and later dates)

•  April 19 - April 25 (published May 6)

Gazette (County Police, Districts 1-6, and Greenbelt and Laurel reports which may cover earlier and later dates and only appear in selected local editions)

• April 26 - May 2 (published May 6)
• Weekly list of county murders (last updated 7 Apr 2010, but incomplete)
  

Mount Rainier

Gory Prince George's (Unofficial lists of homicides since 2006)

Police Press Releases  (Also: Crime mapping | Blog | Facebook } Twitter | YouTube | Crimesolvers)

• 05/03/2010 Police Investigate Fatal Shooting on Marlboro Pike (2731) http://bit.ly/chFkEU
• 05/03/2010 Police Make Quick Arrest in Homicide on Charm Court (2732) http://bit.ly/baJhu2
• 05/04/2010 PGPD Promotes a Safe “Cinco de Mayo” Holiday (2733) http://bit.ly/dBayyc
• 05/04/2010 PGPD to Host Suitland Community Day 2010 (2734) http://bit.ly/apu21i
• 05/05/2010 Identity of Suspect Sought in Multiple Bank Robberies; Surveillance Pictures Released (2735) http://bit.ly/b90LRf
• 05/05/2010 Identity of Suspect Sought in Landover Area Robberies (2736) http://bit.ly/aPsmO2

Sheriff's News Releases (None posted since 7 Aug 2009)

See three additional map-related non-official sites:

• Crime Blotter 
• Crime Reports (does not seem to show recent homicides)
• Murder in Maryland, Washington, DC, and beyond (by Chris Nelson)