article_snippet.sent: Above, police outside the property .
article_snippet.sent: Calvin Williams added: 'Currently we're investigating where this firearm came from.
article_snippet.sent: we're also investigating how this tragedy actually happened.
article_snippet.sent: Above, investigators inspect the scene .
article_snippet.sent: Throughout Sunday afternoon, emergency crews were seen entering and exiting the home.
article_snippet.sent: An investigation is ongoing.