Steven D. Mellin

Steven D. Mellin presented prosecution witness examinations in the guilt and penalty phases and delivered the closing argument requesting a death sentence. During jury selection, he tested whether prospective jurors could actually vote for death if they found it justified. He opposed expanded publicity questioning, which the court declined, and objected to a legislative hypothetical about abolishing capital punishment; the judge noted that objection without an additional ruling. Before testimony began, Mellin requested changes addressing victim witnesses' fear of proximity to the defendant and wheelchair access. The judge discussed accommodations but ordered no final arrangement.

Mellin's guilt-phase survivor examinations developed observations at the bombing scenes, injuries, rescue, and treatment through testimony, photographs, and damaged clothing. Jeffrey Bauman described seeing a man with a backpack and later recognizing him. When the defense challenged the scope of injury testimony, Mellin distinguished injuries from future-life effects and connected them to allegations of maiming and burning; the court rejected the renewed objection. His evidence-recovery examinations addressed BB collection, laboratory tracking, and a discarded backpack's contents. He also elicited medical testimony about Lingzi Lu's fatal blast injuries and recovered metal evidence.

Mellin developed the events surrounding Officer Sean Collier's killing through surveillance testimony, wound analysis, and firearms comparison. David Cahill linked MIT-related projectiles and Watertown casings to the recovered Ruger. In questioning Dun Meng, Mellin distinguished the brothers' actions during the carjacking and escape; redirect addressed Dzhokhar's conduct at the car, ATM, and gas stops, while retaining Meng's qualification about loading. Two defense objections were overruled. Watertown examinations addressed bags and explosions, device recovery, driver identification, and vehicle contact. Mellin's redirect of Joseph Reynolds also established an observation limit: Reynolds could not identify who fired throughout the entire exchange and agreed either suspect could have fired.

In the penalty phase, Mellin elicited testimony about amputations, surgeries, lasting impairments, and injuries to survivors' children. Stephen Woolfenden described his own and his son's injuries and observations of the Richards; the court limited questions interpreting video movement. Mellin argued that survivor testimony supported grave risk of death and the offense's alleged cruelty, rather than treating it simply as victim impact. The court allowed the proposed grave-risk testimony while reserving a medical-photograph ruling. Mellin separately opposed plea-negotiation evidence, Massachusetts's death-penalty policy as mitigation, and a proposed future-attacks mitigator. The plea-evidence decision was reserved, and no substantive ruling was recorded on the latter two disputes.

Mellin challenged mitigation witnesses' opportunities to know the defendant, establishing limited childhood contact or no acquaintance among boxing witnesses. Eric Traub agreed that Dzhokhar was smart and self-motivated, but confined self-motivation to the classroom and maturity to a high-school comparison. Mellin also tested Kevin Michael Roche's account of cellblock gestures; Roche qualified his firsthand knowledge, and the court limited apology questions. His cross-examination of Mark Bezy challenged consulting income, lack of experience administering special administrative measures, or SAMs, and predictions of permanent restrictive confinement at ADX. Bezy acknowledged possible changes but emphasized discretionary advancement, screening, and sanctions. The court required distinctions between H unit and ADX generally, excluded several communication and violence questions, and denied a defense mistrial motion over the cross-examination while restricting further inquiry.

Through rebuttal witnesses Michelle Nicolet and John Oliver, Mellin developed annual SAMs review, uncertain duration, inmate contacts, recreation, and housing changes. The court allowed general testimony, struck Nicolet's case-specific modification answer, and limited some prison-conditions testimony. On Day 63, Mellin tied injuries, family losses, planning, and the defendant's conduct and writings to aggravating factors. He argued that age and Tamerlan's influence deserved little mitigating weight and disputed that ADX confinement would be worse than death, while acknowledging uncertainty about future restrictions. These were prosecution arguments, not findings. The defense challenged his closing language concerning age, Tamerlan's influence, and prison programming and requested a mistrial or curative instructions; those exchanges contain no disposition of the requests.