Pamela Guillen, 40, told CNN she was visiting Magic Mountain to celebrate her daughter’s 16th birthday and they decided to make X2 the final ride of the day before heading to dinner. During the ride’s 3,600-foot course, Guillen repeatedly struck her head against the headrest and, when the train returned to the station, needed assistance exiting her seat and began vomiting, according to ambulance records obtained by CNN. She lost consciousness and became unresponsive after sitting down on a bench. “Mommy, please wake up,” her daughter, Marquez, recalled saying to her mother. “I kept rubbing her thigh and kept shaking...