A woman has died after falling from the tallest steel-hybrid roller-coaster in the world. The accident happened at the theme park in Arlington, Texas. Park officials confirmed the woman died but did not specify how she was killed. However, witnesses said they saw the woman fall from the Texas Giant rollercoaster. “She goes up like this, then when it drops to come down, that’s when it (the safety bar) released and she just tumbled,” said Carmen Brown who saw the accident happened. Brown said she was next in line behind the woman and saw her being strapped into her seat next to her son. “We heard her screaming. We were like, ‘Did she just fall?