"He was just relaxed," she said, asking the paper not to print her name.
At the dorm where Tsarnaev lived, students joked Thursday as they viewed the FBI photos of the bombing suspects on television, a senior who lived in that dorm told The Boston Globe.
"We made a joke like, that could be Dzhokhar," Pamala Rolon said. "But then we thought it just couldn't be him. Dzhokhar? Never."
The campus, which was closed during the search for the bombing suspects, reopened Sunday morning.
Moment of silence
Boston, meanwhile, is trying to return to semblance of normalcy with some streets and business reopening.
Federal investigators on Sunday were lifting crime scene tape and barriers erected during the investigation into the bombings near the marathon's finish line on Boylston Street.
People throughout Massachusetts are being urged to observe a moment of silence Monday at 2:50 p.m., exactly one week after the Boston Marathon bombings.
Of those injured in the marathon bombings, 55 remain hospitalized, including three in critical condition, according to a CNN count.
Doctors, meanwhile, said Sunday that they are "cautiously optimistic" that a Massachusetts transit officer wounded in a shootout with the alleged Boston Marathon bombers will recover.
Richard H. Donohue, 33, remains in critical condition at Mount Auburn Hospital in Cambridge, said Dr. Russell J. Nauta, a surgeon who operated on the officer.
There was life before the bombings, and then life after.
"We are all scattered in the pain and horror of this week's violence," Boston's archbishop, Cardinal Sean O'Malley, told parishioners during Sunday services at the Cathedral of the Holy Cross.
"Some of those here were among those injured. But everyone has been affected."
He voiced what so many have been thinking: Why would anyone do this? What were the bombers thinking?
It has been "very difficult to understand what was going on in their heads," he said.