It was every subway riders nightmare. Wesley Autrey, a 50-year-old construction worker and Navy veteran ... was waiting for the downtown local at 137th Street and Broadway in Manhattan around 12:45 p.m. He was taking his two daughters, Syshe, 4, and Shuqui, 6, home before work. Nearby, a man collapsed, his body convulsing. Mr. Autrey and two women rushed to help, he said. The man, Cameron Hollopeter ... stumbled to the platform edge and fell to the tracks, between the two rails. The headlights of the No. 1 train appeared. I had to make a split decision, Mr. Autrey said. So he made one, and leapt. Mr. Autrey lay on Mr. Hollopeter, his heart pounding, pressing him down in a space roughly a foot deep. The trains brakes screeched, but it could not stop in time. Five cars rolled overhead before the train stopped, the cars passing inches from his head, smudging his blue knit cap with grease. Mr. Autrey heard onlookers screams. Were O.K. down here, he yelled, but Ive got two daughters up there. Let them know their fathers O.K. He heard cries of wonder, and applause. Power was cut, and workers got them out. Mr. Hollopeter ... had only bumps and bruises. The police said it appeared that Mr. Hollopeter had suffered a seizure. Mr. Autrey refused medical help, because, he said, nothing was wrong. He did visit Mr. Hollopeter in the hospital before heading to his night shift. I dont feel like I did something spectacular; I just saw someone who needed help, Mr. Autrey said. I did what I felt was right.