Two young sisters relaxing in a hammock were killed when a brick pillar collapsed on them, Ohio authorities said Monday. Scout Scaravelli, 14, and 12-year-old sister Chasey were trapped under a pile of bricks at their Cleveland Heights home on Sunday night, Cleveland.com reported. Investigators believe one end of the hammock was tied to the bricks and the other to a tree. Although emergency workers were able to extricate the girls, they died at the hospital.