The only living suspect of the Boston marathon bombings, 19-year-old Dzhokhar Tsarnaev, left an extensive digital footprint, even after allegedly carrying out the attack. On Wednesday, a day after two homemade bombs killed three people and injured more than 170, the college student tweeted: "I'm a stress free kind of guy." That day, he returned to his university, the University of Massachusetts at Dartmouth, where he attended classes, partied, and worked out at the gym.
For the most part, his tweets over the past year seem no different from those of any regular college student. On March 22, he wrote, "I was gonna go for a 6am run aha I'm joking I woke up to eat some Nutella." In November 2012 he tweeted a photo of what appears to be his kitten and said, "We're best friends already, f--- my allergies tho."
A message he sent in March of that year, however, may be a window into another side of the college student. He wrote, "decade in america already, i want out."
Alex Wagner discussed the suspect's possible motives with NBC's Pete Williams and the NOW panel -- watch the full segment above.
Correction: An earlier version of this story stated that Dzhokhar Tsarnaev was a student at "UMASS-Amherst." That is incorrect. He was a student at the University of Massachusetts at Dartmouth.