People

Scientist retained by the prosecution to analyze the mixture of DNA inside a glove.

Relative of Tamerlan Tsarnaev who described their 2012 meetings in an FBI interview summary read by Sonya Petri.

Acquaintance of Tamerlan Tsarnaev whose account of their meetings appears in an FBI interview summary read by Sonya Petri.

FBI agent identified by a prospective juror as a longtime neighbor.

FBI interview subject whose April 20, 2013 account of the Tsarnaev brothers was read to the jury by Sonya Petri.

David Cahill's supervisor, who peer-reviewed his MIT shooting and Watertown ballistics findings.

Boston police commissioner who helped direct the Boylston Street crime scene before the FBI took jurisdiction.

Trooper whom Patrick Moynihan named among those processing the Mercedes SUV and Honda Civic at the Watertown Police Department.

Detective lieutenant in charge of the crime-scene section who assigned Colleen Tanguay to guide Timothy Dowd through the Watertown evidence.

Watertown police officer who tried to stop Richard Donohue's bleeding after the shootout, as described by John MacLellan.

Deputy chief who called Matthew Isgur to review MIT camera footage after Officer Sean Collier was shot.

Boston police sergeant who worked with Richard Claflin to collect and preserve video evidence near Boylston Street.

Trooper whom Patrick Moynihan named among those processing the Mercedes SUV and Honda Civic at the Watertown Police Department.

Detective who searched the Stata building with Anthony Grassi for witnesses to Sean Collier's shooting.

Sergeant whom Patrick Moynihan named among those processing the Mercedes SUV and Honda Civic at the Watertown Police Department.

Courtroom participant who responded when the live feed was ready.

Friend of Dzhokhar Tsarnaev identified by Philip Christiana during testimony about an apartment search.

Dzhokhar Tsarnaev's paternal uncle and Elmirza Khozhugov's brother-in-law.

Jessica Kensky's husband, who lost his left leg below the knee in the Boston Marathon bombing.

Son of Liz Norden who lost his right leg above the knee in the Boston Marathon bombing.

Son of William and Denise Richard, and brother of Jane and Martin Richard.

UMass Dartmouth student and friend of Dzhokhar Tsarnaev named in Stephen Silva's account of a New Bedford apartment visit.

Palestinian jihad leader in Afghanistan and author of Join the Caravan.

Celeste Corcoran's husband and Sydney Corcoran's father, who helped his wife after the Boston Marathon bombing.

Colton Kilgore's sister-in-law, who suffered a severed artery and nerve in her right lower leg in the Boston Marathon bombing.

Tsarnaev family landlady and neighbor who attended Dzhokhar's eighth-grade school presentation when his parents could not attend.

Criminalist at the Massachusetts State Police Crime Laboratory who helped collect evidence and collected gloves from a Honda Civic.

Boston Marathon spectator and Paul Norden's brother who lost his right leg below the knee, as described by Marc Fucarile.

Father of Andy Tsarnaev, whom Elmirza Khozhugov identifies as Dzhokhar Tsarnaev's cousin.

Karen McWatters's employer at the Summer Shack, where she worked as his personal assistant.

Jordanian Islamist preacher and author whose writings Matthew Levitt analyzed.

Friend of the Corcoran family who attended the 2013 Boston Marathon with her husband Ron and daughter Krystara.

Daughter of Ron and Karen Brassard who joined the Corcoran family's group at the 2013 Boston Marathon.

Friend of the Corcoran family who attended the 2013 Boston Marathon with his wife Karen and daughter Krystara.

Talk-radio commentator whose coverage prospective jurors said they followed.

Special agent who initialed the packaging of Dzhokhar Tsarnaev's sweatshirt collected at Beth Israel Hospital.

Boxer who competed against Tamerlan Tsarnaev in 2010.

Rap artist whose lyrics Judy Clarke cited as context for Dzhokhar Tsarnaev's tweets.

High school friend of Dzhokhar Tsarnaev and Rosa Booth.

Robert Barnes's childhood friend and Sebastian Freddura's younger brother.

Friend of Tamerlan Tsarnaev, as identified by Robert Barnes.

Alan Hern's son, who was injured in the Boston Marathon bombing.

Associate of Abdullah Azzam during the jihad against the Soviets in Afghanistan.

Special agent who initialed the packaging of Dzhokhar Tsarnaev's sweatshirt collected at Beth Israel Hospital.

Friend of Tamerlan Tsarnaev whose home was across the street from Sam Cuddy's.

Michael Sullivan's ambulance partner, who helped treat Dzhokhar Tsarnaev during his transport from Watertown.

Rap artist whose lyrics Judy Clarke cited as context for Dzhokhar Tsarnaev's tweets.

Federal prisoner identified by Mark Bezy as remaining at ADX since 1995.

UMass Dartmouth acquaintance of Dzhokhar Tsarnaev whose name appeared on a recovered homework document.

Helped Erika Brannock after the Boston Marathon bombing and gave her belt to help stop the bleeding.

Muslim Brotherhood writer whose ideas about immediate jihad influenced later Islamist writings.

Defendant formerly represented by Miriam Conrad.

Alexa Guevara's older sister, who introduced her to Azamat Tazhayakov and Dias Kadyrbayev.

Bureau of Prisons official who met with prison consultant Mark Bezy.

Man Stephen Silva identifies as his identical twin brother in testimony about their life in Cambridge.

Son of Alvi Tsarnaev and cousin of Dzhokhar Tsarnaev.

Dzhokhar Tsarnaev's aunt, who visited Elmirza Khozhugov in Washington State.

Rap artist whose lyrics Judy Clarke cited as context for Dzhokhar Tsarnaev's tweets.

Friend of Jessica Kensky whom she identified in a photograph taken after the Boston Marathon bombing.

UMass Dartmouth history professor whom a prospective juror named as Brian Williams when recalling an interview.

Friend of Elizabeth Zamparelli who knew Dzhokhar Tsarnaev at Cambridge Rindge and Latin School.

Sydney Corcoran's aunt, whose first marathon brought the Corcoran family to Boylston Street.

Expert proposed by the prosecution to review Dzhokhar Tsarnaev's brain imaging before possible testimony.

Landfill superintendent who helped Kenneth Benton locate the dumped contents of a New Bedford Dumpster.

Muslim mystic and writer whose work Michel Reynolds discussed when explaining an Islamic text Dzhokhar Tsarnaev sent to his brother.

Portuguese interpreter sworn to assist the court.

Researcher on radicalization proposed by the defense as an expert on what moves people toward religiously motivated violence.

U.S. Marshals Service general counsel who corresponded with Miriam Conrad about an investigation, as described by Conrad.

Interviewer who met with Magomed Dolakov alongside William O. Filbert III.

Lieutenant whom Patrick Moynihan named among those processing the Mercedes SUV and Honda Civic at the Watertown Police Department.

Capital Jury Project researcher at Northeastern whose work on jurors' beliefs about early release was cited by David Bruck.

Magistrate judge who conducted Dzhokhar Tsarnaev's initial appearance at the hospital.

Member of Joseph Rogers's blended family, identified by him as red-haired Jennifer.

Krystle Campbell's partner, described by Karen McWatters as waiting with her family at the hospital after the bombing.

Author of a personal statement on capital punishment that a prospective juror cited while explaining support for the death penalty.

Companion who accompanied Marc Fucarile to the Boston Marathon in 2013.

Elizabeth Zamparelli's former boyfriend, whose house was across the street from Brendan Mess's.

Adrianna Haslet-Davis's husband, who was injured in the Boston Marathon bombing and applied her first tourniquet.

Mona DiMartino's husband and Colton Kilgore's father-in-law, who watched the marathon from the finish-line photo bridge.

Colton Kilgore's mother-in-law, whose participation in the 2013 Boston Marathon brought her family to the finish line.

Mona and David DiMartino's son and Rebekah Gregory's former boyfriend, who was injured at the marathon finish line.

Specialist who received sweatshirt samples from Stephanie Waite for gunshot-residue testing.

First president of Chechnya, identified in Alexander Niss's account of Anzor Tsarnaev's reported background.

Boston-born poet and philosopher whose words Nadine Pellegrini quoted during the penalty-phase opening.

Interviewer who met with Magomed Dolakov at his apartment alongside James B. Bailey.

Kendrick Ball's boxing coach, whom Ball assisted in the corner at Junior Olympics competitions.

New York field-division agent who operated the total station at the first bombing scene.

Nicole Gross's husband and former University of Tennessee swimmer, who accompanied her to Boston for the marathon.

Management consulting figure whom a prospective juror associated with Business Breakthroughs International.

Interviewer who conducted Viskhan Vakhabov's interview.

Marathon runner and Jeffrey Bauman's wife, whose race he attended in 2013.

Marine and high-school friend of Marc Fucarile who ran the marathon for fallen soldiers.

Tiarrah Dottin's friend, who socialized with Dottin and Dzhokhar Tsarnaev.

Lingzi Lu's roommate, who planned with her to attend Boston University and share an apartment.

Owner of Allied Paving and Jeffrey Bauman's uncle, as described by a prospective juror who worked with him.

Jeffrey Bauman's sister-in-law, introduced by his aunt Jennifer Joyce-Maybury.

Author of Soldiers of God: With the Mujahidin in Afghanistan.

Saudi citizen whom Michel Reynolds described as bringing fighters, funding and battlefield propaganda to Chechnya in the 1990s.

Colton Kilgore's wife, who used her jacket as a tourniquet for her sister Gina's leg after the bombing.

Evidence collector whose name appears with Crystal Komara on a container of BBs recovered from the first bombing scene.

Evidence collector whose name appears with Douglas Klapec on a container of BBs recovered from the first bombing scene.

Erin Hurley's roommate who joined Jeffrey Bauman to watch her run the Boston Marathon in 2013.

Credited by Judge George O'Toole with a passage opposing redress through mob law.

Searched the Stata building with Anthony Grassi for witnesses to Sean Collier's shooting.

Father of Lingzi Lu, who was killed in the Boston Marathon bombing.

Participant in a 2012 symposium discussion with Jay Giedd about social media and adolescent behavior, as recalled in his testimony.

Searched the Stata building with Anthony Grassi for witnesses to Sean Collier's shooting.

Erin Hurley's roommate who watched the Boston Marathon with Jeffrey Bauman and was injured in the bombing.

Francis Hughes's supervisor, who sent Hughes to MIT after Officer Sean Collier was shot.

New Yorker journalist and author of The Predator War, which Rachel Otty assigned to her students.

Boxing trainer who worked with John Curran and appeared with Curran and the Tsarnaev family in a photograph.

Manchester firing-range owner who supplied Matthew Riportella with video and paperwork concerning the Tsarnaev brothers.

Husband of Karen McWatters.

Kendrick Ball's cousin, who sparred with Tamerlan Tsarnaev at Ball's gym.

Friend of Rogerio Franca who visited him in Stoughton with Abubakr Turshaev.

Analyst supervised by Kevin Swindon who worked with John Petrozelli to narrow the investigation's computer-data material.

New Haven evidence-response team leader who transported collected items to the Black Falcon pier with Christopher Derks.

Proposed Bureau of Prisons witness discussed by Timothy Watkins in a request for discovery.

Senior investigative analyst who helped Kevin Swindon prepare and verify recovered computer-data spreadsheets.

Dentist described by a prospective juror as conducting nutrition research in the 1930s.

Co-author with Jay Giedd of a paper on structural MRI and pediatric brain development discussed during his testimony.

Brother of Patricia Campbell.

Management consulting figure whom a prospective juror associated with Business Breakthroughs International.

Professional boxer who sparred with Tamerlan Tsarnaev at Kendrick Ball's gym.

Physician identified by counsel as Katherine Russell's father and a former workplace acquaintance of a prospective juror.

Boxing trainer from Portland, Maine, selected alongside John Curran for the national competition in Salt Lake City.

Roseann Sdoia's friend, who stood with her outside the Forum before the bombing.

College student who helped Roseann Sdoia after the bombing and applied a tourniquet to her leg.

Actor identified by William Weinreb as portraying Sister Helen Prejean in Dead Man Walking.

Representative of the company that installed the Forum restaurant's surveillance system, whom James Marinelli consulted before collecting the recording equipment.

Special agent and bomb technician who joined Philip Christiana in a hazard sweep of the New Bedford apartment.

Talk radio figure whom a prospective juror named while describing coverage followed during the Tsarnaev case.

Man who stayed with Jessica Kensky after the bombing and called her family and a friend to help her.

Soviet leader who, according to Michel Reynolds, ordered the 1944 mass deportation of Chechens to Central Asia.

Jeffrey Bauman's best friend, who visited him in the hospital after the bombing and helped him communicate what he had seen.

Ruslan Tsarni's eldest daughter, identified in a family photograph by Elmirza Khozhugov.

Friend and former roommate of Rogerio Franca in Cambridge.

Viskhan Vakhabov's brother and a UMass Dartmouth acquaintance of Dzhokhar Tsarnaev.

Former probation officer at West Roxbury court, described by his wife as moving into security work at Boston City Hall.

Stephen Woolfenden's wife, who ran the Boston Marathon while her husband and son Leo watched from Boylston Street.

President of Russia whom Michel Reynolds identified as ordering the December 1994 invasion of Chechnya.

Member of Alan Hern's marathon group who cared for his daughter Abigail while he searched for Aaron after the bombing.

Alan Hern's former roommate, who attended the marathon with the Hern family and sought medical care for his son David after the bombing.

Certified Mandarin interpreter assisting the court.