"'That could be an anomaly. It could just be an unusual streak,' said Karen M. Marshall, who is overseeing a nationwide study into suicides by train for the American Association of Suicidology in Washington."
"Other transit systems also are reporting more cases, Marshall said. It's too early to know if there are indeed more deaths or whether agencies are just paying more attention to the problem. 'It also could be clusters that are not related to the agencies at all,' Marshall said.
"Much remains unknown about what drives people to choose such a high-profile method of death, one that shakes up riders and traumatizes train operators."