A classmate of Dzhokhar Tsarnaev at the University of Massachusetts Dartmouth said he interacted with the Boston Marathon bombings suspect a day after the deadly explosions near the finish line of the race.
Andrew Glasby, who said he took a psychology course with Tsarnaev last semster, said the 19-year-old who was captured by authorities on Friday night "acted like nothing happened."
"He was calm, cool. Cool tempered," Glasby recalled in an interview with ABC News.
He added, "I can't believe he had the balls to come back and act like nothing happened."
Glasby said he never met Tsarnaev's older brother, 26-year-old Tamerlan Tsarnaev, who was killed during a deadly shootout with police late Thursday night. Dzhokhar Tsarnaev, Glasby recounted, had spoken with him about transferring from UMass Dartmouth and making an effort to improve his grades. According to academic transcripts, the younger Tsarnaev was failing many courses at the university. The university confirmed that Tsarnaev was on the school's campus and slept in the dorms on Wednesday, a day before the FBI unveiled photos and video footage of him near the site of the blasts.