This happend in Fayette Co WV.
The method of choice to gain entry. Knock on door and when answered, push their way in. The guy had a gun but somehow they wrestled it away from him and unloaded it. Don't know how that happend.
This man should never allow the door to be opened, especially if it is someone he does not know. Valuable lesson though.
UPDATE: Elderly Home Invasion Victim Shares Frightening Experience