- In a year of mass shootings, an ambush on police adds one more victim to the tollLos Angeles Times
- Colorado shooting: Suspect identified as Matthew RiehlCBS News
- Man Suspected Of Shooting 4 Deputies, 1 Officer And 2 Civilians IdentifiedCBS Local
- DC Sheriff on Twitter: “https://t.co/6zZ35XnX50”Twitter
- Donald J. Trump on Twitter: “My deepest condolences to the victims of the terrible shooting in Douglas County …Twitter