The death of a troubled transgender teenager who begged people to fix society before she stepped in front of a tractor-trailer on a highway has been deemed a suicide, and the investigation into it has been closed, the State Highway Patrol said. Leelah Alcorn, who was 17, walked into the path of the tractor-trailer in the wee hours of Dec. 28. She had left a handwritten note on her bed – “I’ve had enough” – and had done an online search about runaway assistance and a Tumblr search for the word “suicide” before walking onto Interstate 71 in suburban Cincinnati, according to a patrol report released Wednesday.