[8] Tsarnaev is represented by Miriam Conrad, David Bruck, William Fick, Timothy G. Watkins, and Judy Clarke.

[9] On January 30, 2014, United States Attorney General Eric Holder announced that the federal government would seek the death penalty against Dzhokhar Tsarnaev.

[4] Weinreb said eight-year-old Martin Richard "bled to death on the sidewalk", Lü Lingzi (Chinese: 吕令子), had the "inside of her stomach pouring out", and Krystle Campbell was left with "gaping holes" in her body.

[4] It was revealed on the first day that Tsarnaev stood on Boylston Street for four minutes before placing a backpack with a bomb in it on the ground.

[4] A graduate student saw the Tsarnaevs standing by the police cruiser Collier was sitting in, and another person heard the gunshots.

[4] In admitting to the crimes, Clarke said that "the circumstances that bring us here today still are difficult to grasp, they are incomprehensible, they are inexcusable", but tried to say that Dzhokhar acted under the influence of Tamerlan.

[17] A photo of him being pushed in a wheelchair by "the man in the Cowboy hat," Carlos Arredondo, was widely circulated after the blasts.

[18] Jurors also saw a compilation of security camera videos that show the Tsarnaev brothers approach the finish line, place the bombs on the ground, and then walk away.

James Hooley, head of Boston Emergency Medical Services, testified ambulances brought 118 victims to hospitals.

[18] Jurors also saw video of Tsarnaev 20 minutes after the explosions, pondering which type of milk to buy, and another of him in the UMass gym later that evening.

[19] He said he was jealous of his brother who had received Jannutul Firdaus, or the highest paradise, and asked God to make him a shaheed.

[21] On the trial's sixth day, Dun Meng (孟盾)[23] described being carjacked by the Tsarnaev brothers and being forced to drive for 90 minutes before escaping.

[22] The seventh day of the trial brought discussion of the gun battle between police and the Tsarnaev brothers in Watertown, Massachusetts.

[20] They then wrestled on the ground, when Dzhokhar sped past them in a stolen SUV close enough that Pugliese could feel the wind on his face.

[20] Jurors learned that the Tsarnaev brothers received the gun they used in their escape attempt from Stephen Silva, a childhood friend of Dzhokhar.

They stated that the lengthy appeals period would force them to relive that day continually, and would rather see him spend life in prison without possibility of release or parole.

Victims and family members had the opportunity to make statements beforehand, although the judge was required to deliver the jury's death verdict.

"[30] After officially ordering that Tsarnaev be executed, O'Toole told him, "No one will remember that your teachers were fond of you, that you were funny, a good athlete ...

[31] In December 2018 Tsarnaev's lawyers filed an appeal on several grounds, including the argument that the judge erred by allowing jurors to be seated who were potentially biased by media coverage.

The remaining convictions still carried multiple life sentences that would keep Tsarnaev in prison regardless of the fate of the new penalty trial.

[36] On April 7, 2022, Tsarnaev's attorneys filed a stay of execution and appeal to consider four constitutional claims in his case with the 1st Circuit Court of Appeals, which included that the US District Court in Boston improperly forced him to stand trial in the city, accusations about the jury and the admittance of evidence that had been collected after a "coerced confession".