"She feels guilty about a lot of this, that she wasn't with her friends," Arthur Lawler said.
It would take hours before the Bauman family knew what had happened to Jeff. They learned about it the way much of the world did: the grisly image on television of their son being wheeled from the scene, his lower legs destroyed.
Erika Schneider, Bauman's sister, saw it first. "She called my mom, freaking out," Chris said. Chris was working at a McDonald's near their home in Concord, N.H., when his mother called him.
"Chris, you have to sprint home," she said. "Something's happened."
— With assistance from Phil Mattingly and Julie Hirschfeld Davis in Washington and Annie Linskey in Boston.