Mystery surrounds Christmas Day murder-suicide near Dallas

• 6 family members killed by a relative dressed as Santa Claus source

» A family, aged 18-60, killed: Investigators worked overnight through Monday morning to figure out what happened Sunday, as a home in Grapevine, Texas, turned into a deadly scene. “Seven people in one setting in Grapevine, that’s never happened before. Ever,” said Grapevine Police Lt. Todd Dearing, who noted victims were related, but some may not have lived in the apartment. Many of the buildings are vacant around the apartment, and the only word of the shooting was a 911 call from a line with no answer on the other end.

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